random

4,782 results, page 37
  1. statistics

    A random sample of 16 mid-sized cars tested for fuel consumption gave a mean of 26.4 kilometers per liter with a standard deviation of 2.3 kilometers per liter. i) Assuming that the kilometers per liter given by all mid-sized cars have a normal

    asked by Koia on May 10, 2012
  2. Statistics help

    A trucking firm delivers appliances for a large retail operation. The packages (or crates) have a mean weight of 306 lb. and a variance of 2209. (Give your answers correct to four decimal places.) (a) If a truck can carry 3940 lb. and 25 appliances need to

    asked by DeeDee7 on June 14, 2013
  3. Math, statistics

    A trucking firm delivers appliances for a large retail operation. The packages (or crates) have a mean weight of 306 lb. and a variance of 2209. (Give your answers correct to four decimal places.) (a) If a truck can carry 4070 lb. and 25 appliances need to

    asked by hanjay on June 8, 2014
  4. Math help

    A trucking firm delivers appliances for a large retail operation. The packages (or crates) have a mean weight of 306 lb. and a variance of 2209. (Give your answers correct to four decimal places.) (a) If a truck can carry 3940 lb. and 25 appliances need to

    asked by Gayle 79 on June 17, 2013
  5. math

    A trucking firm delivers appliances for a large retail operation. The packages (or crates) have a mean weight of 306 lb. and a variance of 2209. (Give your answers correct to four decimal places.) (a) If a truck can carry 3940 lb. and 25 appliances need to

    asked by Sue7 on June 21, 2013
  6. math

    If 90% of the households in a certain region have an answering machines and 50% have both answering machines and call waiting, what is the probability that a household chosen at random and found to have an answering machine also has call waiting? This is

    asked by anonymous on October 19, 2007
  7. Math Please Help Me

    1. At your summer job with a research company, you must get a random sample of people from your town to answer a question about spending habits. Which of the following methods is most likely to be random? You survey customers at the local shopping mall.

    asked by YOLO on April 12, 2015
  8. Statistics

    Can anyone tell me how to use TI-84 calculator to solve this problem??? A company has developed a new type of light bulb, and wants to estimate its mean lifetime. A simple random sample of 12 bulbs had a sample mean lifetime of 692 hours with a sample

    asked by Anonymous on June 29, 2013
  9. finite math

    A golf ball is selected at random from a golf bag. If the bag contains 3 black balls, 8 orange balls, and 4 brown balls, find the probability of the event. That the golf ball will be black or orange.

    asked by carol on June 17, 2014
  10. probability

    A golf ball is selected at random from a golf bag. If the bag contains 2 orange balls, 5 red balls, and 18 brown balls, find the probability of the event. That the golf ball will be orange or red.

    asked by carol on June 17, 2014
  11. Math (Probability)

    An urn A contains 6 white balls and 7 black balls. And urn B contains 8 white balls and 6 black balls. A person draws a ball at random from one of the two urns. It turns out to be black. What is probability that the ball was drawn from urn A? (A) 7/14 (B)

    asked by AngelG on October 11, 2012
  12. Math (Probability)

    An urn A contains 6 white balls and 7 black balls. And urn B contains 8 white balls and 6 black balls. A person draws a ball at random from one of the two urns. It turns out to be black. What is probability that the ball was drawn from urn A? (A) 7/14 (B)

    asked by AngelG on October 11, 2012
  13. math ..PLEASE HELP !!!

    A local bank reports that 70% of its customers maintain a chequing acct, 50% have a savings acct and 40% have both.If a customer was chosen at random a) what is the probability customer has a chequing or saving acct b)probability the selected customer has

    asked by Linda on February 23, 2007
  14. statistics

    according to the energy information administration (officially energy statics from the US Government) the mean price for one gallon of unleaded regular gas in the US cities for the year 2007 was 2.80 A random sample of 30 pumps in georgia yielded and

    asked by jen on December 6, 2011
  15. Math

    Eduardo has a red 6-sided number cube and a blue 6-sided number cube. The faces of the cubes are numbered 1 through 6. Eduardo rolls both cubes at the same time. The random variable X is the number on the red cube minus the number on the blue cube. What is

    asked by David on August 23, 2016
  16. statistic

    an employment information service reports that the mean annual salary for full time male workers ages 25 to 34 with a bachelor's degree is $48718. in a random sample of 12 full time males workers ages 25 to 34 with a bachelor's degree, the mean annual

    asked by Ricky on December 5, 2013
  17. Statistics

    A recent study stated that if a person chewed gum the average number of sticks of gum he or she chewed daily was eight. To teat the claim a researcher selected a random sample of 36 gum chewers and found the mean number of sticks of gum chewed per day was

    asked by Camille on April 8, 2009
  18. Math

    X, is assumed to be a random variable by placing letters of the word “YACHT” in a hat. If these letters are withdrawn then it gets replaced. A value of 1 is given when a vowel is retrieved, and a value of 2 is given when a consonant is retrieved while

    asked by Anonymous on September 15, 2017
  19. Statistics

    2. The time (in number of days) until maturity of a certain variety of hot pepper is normally distributed, with mean m and standard deviation s = 2.4. This variety is advertised as taking 70 days to mature. I wish to test the hypotheses H0: m = 70, Ha: m >

    asked by Latoya on November 30, 2008
  20. Statistics

    2. The time (in number of days) until maturity of a certain variety of hot pepper is normally distributed, with mean m and standard deviation s = 2.4. This variety is advertised as taking 70 days to mature. I wish to test the hypotheses H0: m = 70, Ha: m >

    asked by Soa on December 11, 2009
  21. Math

    A 10-in2 section of a 25-in2 dartboard is painted red. If a dart lands at random on the dartboard, what is the probability that it lands in the section painted red?

    asked by Bage123 on October 17, 2012
  22. p

    Alice and Bob each choose at random a real number between zero and one. We assume that the pair of numbers is chosen according to the uniform probability law on the unit square, so that the probability of an event is equal to its area. We define the

    asked by JuanPro on February 7, 2014
  23. probability

    Alice and Bob each choose at random a real number between zero and one. We assume that the pair of numbers is chosen according to the uniform probability law on the unit square, so that the probability of an event is equal to its area. We define the

    asked by JuanPro on February 7, 2014
  24. math

    In a random sample of 200 students who were asked their favorite color, it was found that twenty more students liked blue than purple and eight fewer liked green than blue. Find the number of students who chose each color as their favorite. I posted this

    asked by Samuel on November 6, 2017
  25. statistic

    the academic staff of a large university are provided with a PC each. it is known that after a number of years the PC need to be upgraded. The time interval before upgrading of the PC is distributed normally with a mean of 24 months and a standard

    asked by pusaran on May 19, 2012
  26. math

    random sample of 9600 students. 46% had at least one parent who was a college graduate. Estimate with 99% confidence the proportion of all students who had at least one parent who was a college grad. b) Sample does not include drop outs so estimate is

    asked by Sejul on March 31, 2013
  27. statistics

    Suppose that the percentage returns for a given year for all stocks listed on the new york stock exchange are approximately normally distributed with a mean of 12.4 percent and a standard deviation of 20.6 percent. Consider drawing a random sample of n=5

    asked by ileana on November 9, 2009
  28. math

    random sample of 9600 students. Multistage design effect similar to an SRS (for those still in school) 46% had at least one parent who was a college graduate. Estimate with 99% confidence the proportion of all students who had at least one parent who was a

    asked by Please Help on April 2, 2013
  29. Res/342

    Suppose you devised a training program to raise student scores on a standardized test, such as ACT, or AIMS (like in Arizona). You first administer the test to a random sample of students, record their scores, administer the training to these students, and

    asked by Hamilton on November 18, 2011
  30. statistics

    Simple question I may be over thinking 30. Gift Baskets: The Gift Basket Sore had the following premade gift baskets containing the following combinations in stock. cookies mugs candy -------------------------------------- coffee 20 13 10 tea 12 10 12

    asked by Anonymous on February 20, 2014
  31. Math

    Mrs.Wallace wants to buy 1 1/2 gallons of sour cream for a recipe If sour cream is sold only in 1 pint containers how many containers will she need to buy A.6 B.8 C.12 D.16 B 12.Robert has 17 games in his room He has 6 board games and the rest are video

    asked by Jerald on April 18, 2013
  32. Dine

    Men spend an average of 29 minutes per day on weekends and holidays exercising and playing sports. They spend an average of 23 minutes per day reading. A random sample of 25 men resulted in a mean of 35 minutes exercising with a standard deviation of 6.9

    asked by angie on November 10, 2014
  33. Maths Ms sue

    Select the TWO options that are TRUE statements about survey sampling. Select one or more: (1)Cluster sampling usually increases the sampling error compared to a simple random sample of the same size. (2)In stratified sampling, each member of the

    asked by jenny on May 10, 2016
  34. algebra 2

    In a shipment of alarm clocks, the probability that one alarm clock is defective is 0.04. Charlie selects three alarm clocks at random. If he puts each clock back with the rest of the shipment before selecting the next one, what is the probability that all

    asked by hannah on November 12, 2013
  35. Math-Statistics

    Assume that 60% of community college students are female. 1) If we pick 10 students at random justify why we can or cannot model this using a normal model. 2) Find the probability that 8 of the 10 students selected are female. 3) Find the probability that

    asked by Jose on April 8, 2013
  36. math

    There are 25 red beads,x blue beads and y green beads in a box.When a bead is picked at random,the probability that it is blue is 1 over 4 and the probability that it is green is 1 over 3. (a)Find the value of x and y. (b)How many blue beads must be added

    asked by mandy on July 7, 2014
  37. Math

    In a shipment of alarm clocks, the probability that one alarm clock is defective is 0.04. Charlie selects three alarm clocks at random. If he puts each clock back with the rest of the shipment before selecting the next one, what is the probability that all

    asked by nikkie on December 6, 2013
  38. Statistics

    Of the parts produced by a particular machine, 1.5% are defective. If a random sample of 11 parts produced by this machine contains 2 or more defective parts, the machine is shut down for repairs. Find the probability that the machine will be shut down for

    asked by HELP on November 30, 2013
  39. math,help

    can someone show me these steps with the division like 2 --- 1 which would mean half. the following though. so i can see it. Simplify 3 --- + 1 x-5 ----------- 1 - (4)/(x-5) Get least common denominator. For top part, the LCD is x-5. So the 1 becomes

    asked by jasort20 on March 14, 2007
  40. Probability

    An image , corrupted with noise, has pixels which take the value 1 with probability q and 0 with probability 1−q, with q being the value of a random variable Q which is uniformly on [0,1]. Xi is the value of pixel i, but we observe Yi=Xi+N for each

    asked by organicCoco on November 15, 2018
  41. Math

    he physics department of a college has 9 male professors, 8 female professors, 10 male teaching assistants, and 13 female teaching assistants. If a person is selected at random from the group, find the probability that the selected person is a teaching

    asked by Junior on July 2, 2014
  42. Math check

    The number of ships to arrive at a harbor on any given day is a random variable represented by x. The probability distribution of x is as follows. (Give your answers correct to two decimal places.) x 10 11 12 13 14 P(x) 0.37 0.09 0.05 0.14 0.35 (a) Find

    asked by Nora 55 on June 2, 2013
  43. Math-Probability

    Consider a collection of biased coins, each showing Heads with probability and Tails with probability , independently of the others. The coins are tossed and all coins showing Heads are collected together and tossed again. Write down an expression for the

    asked by sand on January 22, 2012
  44. chemistry

    consider a random mixture of two particles,diamond and SiC.Assume all particles are spherical with a radius of 0.100mm. The mixture is 80.0 wt% diamond(density=3.51 g/ml) and 20.0 wt% SiC (density=3.23 g/ml) a)Calculate the mass of a single particle

    asked by mahtab on October 2, 2012
  45. Math-Probability

    Consider a collection of n biased coins, each showing Heads with probability p and Tails with probability 1-p , independently of the others. The coins are tossed and all coins showing Heads are collected together and tossed again. Write down an expression

    asked by sand on January 24, 2012
  46. Math-Probability

    Consider a collection of n biased coins, each showing Heads with probability p and Tails with probability 1-p , independently of the others. The coins are tossed and all coins showing Heads are collected together and tossed again. Write down an expression

    asked by sand on January 22, 2012
  47. math

    A container has three white balls and two red balls. A first ball is drawn at random and not replaces. Then a second ball is drawn. give the following conditions. What is the probability that the second ball was red? The first ball was white? The first

    asked by Anonymous on September 9, 2010
  48. statistics

    In the past a certain college has found that 35% of the students will grad within 4 years. A random sample of 450 students at this college is taken and going to be followed until graduation. A. What is the sampling distribution of the statistic of

    asked by danny on June 12, 2011
  49. Statistics

    In his management information systems textbook,Professor David Kroenke raises and interesting point:"If 98% of our market has Internet access,do we have a responsibility to provide non-Internet materials to that other 2%?Suppose that 98% of the customers

    asked by John on April 9, 2013
  50. Math

    Binomial problems: Basic Anita's, a fast-food chain specializing in hot dogs and garlic fries, keeps track of the proportion of its customers who decide to eat in the restaurant (as opposed to ordering the food "to go"), so it can make decisions regarding

    asked by Armando on February 21, 2012
  51. Statistics

    The Centers for Disease Control (CDC) collects yearly statistics on drinking behavior in the United States by surveying a random sample of U.S. adults. The following data display the percent of adults aged 18 years and over who had 5 or more drinks in 1

    asked by Mike on July 8, 2013
  52. chem

    Which statement is wrong? 1. Adding the same amount of heat to two different objects will produce the same increase in temperature. 2. When the same amount of heat produces different changes in temperature in two substances of the same mass, we say that

    asked by luke on April 25, 2012
  53. Math

    On the leeward side of the island of Oahu, in the small village of Nanakuli, about 80% of the residents are of Hawaiian ancestry. Let n = 1,2,3.... represent the number of people you must meet until you encounter the first person of Hawaiian ancestry in

    asked by Billy on May 21, 2012
  54. Math

    On the leeward side of the island of Oahu, in the small village of Nanakuli, about 80% of the residents are of Hawaiian ancestry. Let n = 1,2,3.... represent the number of people you must meet until you encounter the first person of Hawaiian ancestry in

    asked by Chad on May 22, 2012
  55. math

    susan has red, blue, green, and yellow sweaters, joanne has green, red, purple, and white sweaters, diane's sweaters are red, blue, purple, and mauve, each girl ahs only one sweater of each color and will pick a sweater to wear at random what is the

    asked by lisa on May 13, 2010
  56. Algebra II

    1) A red die and a blue die are tossed. What is the probability that the red die shows a 3 and the blue die shows a number greater than 3? Answer: 3/5 2) Tickets are numbered 1 to 50 and placed in a box. Three tickets are drawn at random without

    asked by Lucy on March 30, 2008
  57. math

    In the year 2003, the population of a certain district was 1.8 million. Thirty percent of the population was in the age group 15-40 years. In the same year, 120,000 people in the district the Voluntary Counseling and Testing (VCT) contra for an HIV test.

    asked by kudu on March 15, 2015
  58. math

    In the year 2003, the population of a certain district was 1.8 million. Thirty percent of the population was in the age group 15-40 years. In the same year, 120,000 people in the district the Voluntary Counseling and Testing (VCT) contra for an HIV test.

    asked by kudu on March 16, 2015
  59. Statistics

    a Rollercoaster's auditors estimate that the average daily loss from those illegally riding without tickets is at lease (greater or equal) $295, but wants to determine the accuracy of this statistic. The company researcher takes a random sample of losses

    asked by Calyssa on November 5, 2014
  60. science

    Mary and Tom park their cars in an empty parking lot with n >_ 2 consecutive parking spaces (i.e, spaces in a row, where only one car fits in each space). Mary and Tom pick parking spaces at random. (All pairs of parking spaces are equally likely.) What is

    asked by dell on February 6, 2014
  61. Math Statistical #2

    Research at the University of Toledo indicates that 50 percent of the students change their major area of study after their first year in a program. A random sample of 100 students in the College of Business revealed that 48 had changed their major area of

    asked by Monique on June 11, 2008
  62. Statistic

    A quiz consists of 10 multiple-choice questions. Each question has 5 possible answers and only one of them is correct. A student has not studied for the quiz and will pick his answers randomly. 1)Define the random variable x that will be used for problem,

    asked by Amriajasmine on March 1, 2015
  63. physics

    Alice has a very important piece of information, which is encoded as an integer k. She is storing this number in a quantum state |ψ⟩=∑xαx|x⟩ of n qubits in such a way that if you apply QFT2n to |ψ⟩ and then measure in the standard basis, you get

    asked by s on March 22, 2013
  64. statistics

    A jar contains 7 red balls, 5 green balls, 4 blue balls, and 3 white balls. A sample of size 7 balls is selected at random without replacement . Find t the probability that sample contains two red balls, 2 green balls, 2 blue balls, and 1 white ball.

    asked by kp on December 26, 2014
  65. Statistics

    The number of ships to arrive at a harbor on any given day is a random variable represented by x. The probability distribution of x is as follows. (Give your answers correct to two decimal places.) x 10 11 12 13 14 P(x) 0.37 0.09 0.05 0.14 0.35 (a) Find

    asked by Gayle on May 27, 2013
  66. statistics help

    The number of ships to arrive at a harbor on any given day is a random variable represented by x. The probability distribution of x is as follows. (Give your answers correct to two decimal places.) x 10 11 12 13 14 P(x) 0.38 0.1 0.07 0.12 0.33 (a) Find the

    asked by Kim5 on June 15, 2013
  67. Math

    To get a driver's license, an applicant must pass a written test and a driving test. Pasts records show that 80% of the applicants pass the written test and 60% of those who have passed the written test pass the driving test. Based on these figures, how

    asked by Ava on March 29, 2017
  68. Statistics

    The TreeDropped Fruit Company wants to sell its apples in pink and yellow gift boxes. To design the boxes, the company needs to estimate the average diameter of their apples. A random sample of 50 apples has a mean of 4.1 inches. Using previous research

    asked by Jenny on April 23, 2015
  69. statistics

    A random sample of 31 people employed by the Florida state authority established they earned an average wage (including benefits) of $56 per hour. The sample standard deviation was $6.35 per hour. (a)What is your best estimate of the population mean?

    asked by tina on March 8, 2012
  70. statistics

    The ages of commercial aircraft are normally distributed with a mean of 13.0 years and a standard deviation of 7.5 years what percentage of individual aircraft have ages greater than 15 years assume that a random sample of 49 aircraft is selected and the

    asked by Tanya on April 24, 2012
  71. statistics

    The J.R. Simplot Company produces frozen French fries that are then sold to customers such as McDonald's. The "prime" line of fries has an average length of 6.00 inches with a standard deviation of0.50 inch. To make sure that Simplot continues to meet the

    asked by laura on May 1, 2018
  72. Calc

    The time interval T, in minutes, between patient arrivals in an emergency room is a random variable with exponential density function p(t) = 0:125e^-.125t. What is the average time between patient arrivals? What is the probability of two patients arriving

    asked by Alice on March 29, 2017
  73. business

    If Jaguar decides it will only have dealerships in cities with at least 150,000 people, it is using a ______ variable to segment its market. A) behavioristic B) demographic C) psychographic D) environmental E) geographic Which of the following is true with

    asked by business on September 29, 2014
  74. statistics

    You have hired a polling organization to take a simple random sample from a box of 200,000 tickets and estimate the percentage of 1s in the box. Unknown to them, the box contains 50% 0s and 50% 1s. How far off should you expect them to be if they draw

    asked by Anonymous on August 7, 2011
  75. Math: Probability

    Sally has a jar of 10 marbles, 3 red, 4 blue, and 3 green. If Sally reaches into her jar and selects two marbles at random, what is the probability that the first marble is red and the second is also red? What is the probability that the first is red and

    asked by Angela on February 12, 2015
  76. Math

    A bag contains nine red marbles, four green marbles, three blue marbles, and two yellow marbles. If Lisa draws a random marble from the bag, what is the probability that it will be a red, green, or blue marble?

    asked by Lyla on April 18, 2014
  77. Statistics

    The weight of a small Starbucks coffee is a normally distributed random variable with a mean of 360 grams and a standard deviation of 9 grams. Find the weight that corresponds to each event. Show your work. a. Highest 10 percent; b. Highest 50 percent; c.

    asked by Shon on September 8, 2010
  78. statistics

    Box A contains 4 red and 6 blue balls. Box B contains 5 red and 10 blue balls. A box is selected at random and a ball is drawn. Find the probability that the ball is blue, given that it came from Box B.

    asked by Lori on September 22, 2010
  79. statistics

    Box A contains 4 red and 6 blue balls. Box B contains 5 red and 10 blue balls. A box is selected at random and a ball is drawn. Find the probability that the ball is blue, given that it came from Box B.

    asked by Lori on September 22, 2010
  80. Statistics

    Box A contains 4 red and 6 blue balls. Box B contains 5 red and 10 blue balls. A box is selected at random and a ball is drawn. Find the probability that the ball is blue, given that it came from Box B.

    asked by Lori on September 23, 2010
  81. statistics

    . In his management information systems textbook, Professor David Kroenke raises an interesting point: “If 98% of our market has Internet access, do we have a responsibility to provide non-Internet materials to that other 2%? Suppose that 98% of the

    asked by michel on April 4, 2013
  82. mathematics

    The probability of choosing a 6 at random from a standard deck of playing cars is 1/13.Use this information for 1 and 3. 1. what is the complement of the event of choosing a 6 ? 2. What is the probability of the complement of the event of choosing a 6 ? 3.

    asked by thomas on April 24, 2014
  83. math

    The probability of choosing a 6 at random from a standard deck of playing cars is 1/13.Use this information for 1 and 3. 1. what is the complement of the event of choosing a 6 ? 2. What is the probability of the complement of the event of choosing a 6 ? 3.

    asked by thomas on April 24, 2014
  84. poetry

    I need help determining the meter in my poem. The Ocean says, "Roar" to wake me up, And I smile as I grab my coffee cup, Because this is the day the Lord has made! I refuse to quiver and be afraid. The sunburst peeks through my window wide, And stay that

    asked by Person on June 30, 2011
  85. Statistics

    What price do farmers get for their watermelon crops? In the third week of July, a random sample of 52 farming regions gave a sample mean of = $6.68 per 100 pounds of watermelon. Assume that is known to be $1.94 per 100 pounds. A farm brings 35 tons of

    asked by Desperate on July 7, 2012
  86. STATISTICS HELP!!!!!!!

    Statistical Abstracts (117th edition) reports sale price of unleaded gasoline (in cents per gallon) at the refinery. The distribution is mound-shaped with mean μ = 80.04 cents per gallon and standard deviation, σ = 4.74 cents per gallon. (a) Are we

    asked by Amy on August 10, 2011
  87. english

    What is the topic sentence I think it is sentence 3 please let me know if you think it is as well Voice mail is usually part of your firm’s phone system. It is a way to digitally record messages, and it allows “random access” so you can skip, delete,

    asked by michelle on October 19, 2008
  88. Statistics

    28. A group of statistics students decided to conduct a survey at their university to find the average (mean) amount of time students spend studying per week. Based on a simple random sample, they surveyed 144 students. The statistics showed that students

    asked by Steph on October 22, 2011
  89. statistics

    A certain geneticist is interested in the proportion of males and females in the population that have a certain minor blood disorder. In a random sample of 1500 males, 75 are found to have disorder, whereas 80 of 2000 females appear to have disorder. Find

    asked by Ali on June 3, 2011
  90. statistics3. Sick-leave records obtained from a ra

    3. Sick-leave records obtained from a random sample of 200 social workers showed a mean number of days sick leave equal to 25.6 last year. If the sample standard deviation is 5.1, construct a 90% confidence interval for the mean number of days sick leave

    asked by CYNTHIA on March 29, 2013
  91. Statistics

    A random sample of 14 evenings at the O'Sullivan house hold showed that the family received an average of 2.4 solicitation calls each evening. The sample standard deviation was s= 0.9. Find a 99% confidence interval for the population mean number of

    asked by Jasmine on March 25, 2012
  92. Statistics

    A random sample of 14 evenings at the O'Sullivan house hold showed that the family received an average of 2.4 solicitation calls each evening. The sample standard deviation was s= 0.9. Find a 99% confidence interval for the population mean number of

    asked by Sara on November 7, 2012
  93. Math

    the 64 people who answered "yes" to a question, 6 were male. Of the 70 people that answered "no" to the question, 8 were male. If one person is selected at random from the group, what is the probability that the person answered "yes" or was male?

    asked by Help on April 11, 2016
  94. Stat

    Of the 64 people who answered "yes" to a question, 6 were male. Of the 70 people that answered "no" to the question, 8 were male. If one person is selected at random from the group, what is the probability that the person answered "yes" or was male?

    asked by Anonymous on April 7, 2016
  95. stats

    The Ledd Pipe Company has received a large shipment of pipes, and a quality control inspector wishes to estimate the average diameter of these pipes. A random sample of 18 pipes produces an average diameter of 2.56 mm with a standard deviation of 0.05 mm.

    asked by johnny on November 27, 2012
  96. Probability (Please check answer and assist)

    X, is assumed to be a random variable by placing letters of the word “YACHT” in a hat. If these letters are withdrawn then it gets replaced. A value of 1 is given when a vowel is retrieved, and a value of 2 is given when a consonant is retrieved while

    asked by Anonymous on September 16, 2017
  97. grid problem (geometry)

    The squares of a 2×60 chessboard are coloured black and white in the standard alternating pattern. At random, exactly half of the black squares are removed from the board. The expected number of white squares that have no neighbours after this process can

    asked by john on June 15, 2013
  98. statistics

    In a state,52%of the voters supports party-R, and 48% supports party-D. In second state 47% of the voters supports party-D. Suppose 100 voters are surveyed from each state. Assume the survey uses simple random sampling. what is the probability that the

    asked by johnprabhakaran on November 15, 2011
  99. Statistics

    he Sydney Airport Commission set a performance target of 18 minutes for the time taken for passengers to claim their luggage at domestic terminals. In order to monitor performance a study was conducted by taking a random sample of 200 passengers

    asked by Cath on May 24, 2011
  100. Statistics

    The Sydney Airport Commission set a performance target of 18 minutes for the time taken for passengers to claim their luggage at domestic terminals. In order to monitor performance a study was conducted by taking a random sample of 200 passengers

    asked by Bob on May 24, 2011

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