random

4,731 results, page 30
  1. Probability & Statistics

    You want to rent an unfurnished one-bedroom apartment in Boston next year. The mean monthly rent for a random sample of 14 apartments advertised in the local newspaper is $1200. Assume that the standard deviation is $230. Find a 95% confidence interval for

    asked by James on July 9, 2012
  2. Algebra

    Each person that works at a company is given a 5-digit code followed by a letter,either uppercase or lowercase.These employees must enter their codes on a keypad to enter and exit the office building The company has 130 employees. a) How many codes are

    asked by Gianina HELP HELP on December 18, 2012
  3. algebra

    . Mrs. Crenshaw has confiscated 4 cell phones from 4 different students because they used them during class. To get the cell phones back, they have to answer the fol- lowing question: What is the probability that no student receives his or her own phone if

    asked by marissa on March 11, 2014
  4. math

    The completion of each license plate is tested to see if the values random. Create an n-ary relation – in table form – that depicts possible results of ten license plate outputs. Include the following results: • • Number •

    asked by Anonymous on December 15, 2011
  5. Math

    9 fair coins are independently tossed in a row. Let X be the random variable denoting the number of instances in which a Head is immediately followed by a Tail during these 9 tosses. The variance of X has the form ab, where a and b are coprime integers.

    asked by Ichigo on April 20, 2013
  6. Math

    9 fair coins are independently tossed in a row. Let X be the random variable denoting the number of instances in which a Head is immediately followed by a Tail during these 9 tosses. The variance of X has the form a/b, where a and b are coprime integers.

    asked by Zeneth on April 20, 2013
  7. statistics

    Consider a 95% confidence interval for a population mean constructed from a random sample of 250 observations taken from a Normal population. Sigma is known to be 14. If we were to construct another 95% confidence interval, this time using 1,000

    asked by AMY on February 21, 2011
  8. statistics

    Consider a 95% confidence interval for a population mean constructed from a random sample of 250 observations taken from a Normal population. Sigma is known to be 14. If we were to construct another 95% confidence interval, this time using 1,000

    asked by AMY on February 21, 2011
  9. Math

    Please help! I am confused about this question and can not seem to get the answer. Thanks! 1) You choose a marble at random from a bag containing eight brown marbles, seven yellow marbles, and one purple marble. You replace the marble and then choose

    asked by Tia on May 14, 2015
  10. Finite Math

    A factory produces fuses, which are packaged in boxes of 26. Eight fuses are selected at random from each box for inspection. The box is rejected if at least one of these eight fuses is defective. What is the probability that a box containing twelve

    asked by Amanda on March 16, 2012
  11. Algebra

    Need help, I think it is 2/25. Do you have an equation that I can figure it? You choose a marble at random from a bag containing eight brown marbles, six yellow marbles, and one purple marble. You replace the marble and then choose again. Find P(both

    asked by Sandra on May 22, 2014
  12. math

    a bag contains 33 green marbles and 25 blue marbles. you select a marble at random from the bag. find the theoretical probability of selecting a blue marble. thanks Pr(blue)= number blue/total marbles

    asked by dillon on April 13, 2007
  13. math

    You order sixteen burritos to go from a Mexican restaurant: seven with hot peppers and nine without. However, the restaurant forgot to label them. If you pick four burritos at random, find the probability that at least two of the burritos you pick have hot

    asked by 0zz on April 14, 2015
  14. Math

    I'm really struggling with how to set this up: A company has 18 members on its management team,10 men and 8 women. There is a conference in Hawaii, and the company decided to send 5 people. If the selection of five people is random, find the following

    asked by Samantha on November 5, 2010
  15. Math - Statistics

    The increase or decrease in the price of a stock between the beginning and the end of a trading day is assumed to be an equally likely random event. What is the probability that a stock will show a decrease in its closing price on eleven consecutive days?

    asked by Derrin on June 19, 2015
  16. Biology

    In order to predict the percentage of males and females three assumptions must be considered: 1. The X carrying sperm and Y carrying sperm have an equal chance of fetilization: 2. The egg and sperm combine at random: 3. the XX and XY zygotes have equal

    asked by Christina on November 25, 2011
  17. statitstics

    A warehouse employs 22 workers on first shift and 14 workers on second shift. Eight workers are chosen at random to be interviewed about the work environment. Find the Probability of choosing: A. All first-shift workers B. All second-shift workers C. Six

    asked by latarsha on February 5, 2013
  18. statistics

    Do you want to own your own candy store? Wow! With some interest in running your own business and a decent credit rating, you can probably get a bank loan on startup costs for franchises such as Candy Express, The Fudge Company, Karmel Corn, and Rocky

    asked by Anonymous on December 3, 2012
  19. Basic Statistics

    A population of 200 voters contains 52 Republicans, 128 Democrats, and 20 independents and members of other parties. A simple random sample of 20 voters will be drawn from this population. The expected number of Republicans in the sample is ______ ? The

    asked by mike on July 26, 2011
  20. Statistics

    It is claimed that 70% of the cars on the Valley Highway are going faster than 65 miles per hour. A random sample of 12 cars was observed under normal driving conditions with no police car in sight. (A) What is the probability that all of them were going

    asked by Samantha on May 4, 2016
  21. Statistics- Standard Error

    A population of 200 voters contains 52 Republicans, 128 Democrats, and 20 independents and members of other parties. A simple random sample of 20 voters will be drawn from this population. The expected number of Republicans in the sample is ______ ? The

    asked by Sarah on July 26, 2011
  22. Stat

    Coin box Question: Assume that there are 25 pennies, 10 nickels, 10 dimes, and 5 quarters in a box. after shuffeling the box, you pick a coin at random and note down its face value. let x represent the face value of the coin in cents. then construct the

    asked by BRITT on November 2, 2009
  23. Statistics

    Coin box Question: Assume that there are 25 pennies, 10 nickels, 10 dimes, and 5 quarters in a box. after shuffeling the box, you pick a coin at random and note down its face value. let x represent the face value of the coin in cents. then construct the

    asked by BRITT on November 2, 2009
  24. STATISTICS

    Suppose that, for students who are enrolled in college algebra, 78 percent are freshmen, 40 percent are female, and 28 percent are female and are freshmen. Your answers below should be entered as decimals and rounded to three decimal places. (a) One

    asked by Anonymous on March 20, 2012
  25. MATH

    Coin box Question: Assume that there are 25 pennies, 10 nickels, 10 dimes, and 5 quarters in a box. after shuffeling the box, you pick a coin at random and note down its face value. let x represent the face value of the coin in cents. then construct the

    asked by BRITT on November 2, 2009
  26. Statistics

    Suppose the mean income of 35-year-olds in the US is $25,000. A random sample of 150 35-year-olds in California results in a sample mean income of $26,600 and a sample standard deviation of $3800. At the 5% significance level, ca we conclude that the true

    asked by jason on May 23, 2014
  27. Algebra

    1. Nine students ask to visit a college admissions counselor. Each scheduled visit includes one student. In how many ways can they be scheduled? **They can be arranged in 45,360 different ways.** 2. Evaluate 8P2 Using the permutation formula, **The answer

    asked by |-/ on April 25, 2018
  28. 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 Nesa on May 11, 2012
  29. probability

    Consider a Bernoulli process with parameter p=1/3. Let T1 be the time of the first success and let T1+T2 be the time of the second success. We are told that the results of the two slots that follow the first success are failures, so that XT1+1=XT1+2=0.

    asked by David on November 28, 2018
  30. statistics

    A simple random sample of size n = 300 is obtained from a population whose size is and whose population size is n=20,000 ans whose proportion with a specified characteristic is p=0.8. Describe the sampling distribution of P^. A) Approximately normal; ìp =

    asked by jackie on March 1, 2011
  31. probability

    Consider a Bernoulli process with parameter p=1/3. Let T1 be the time of the first success and let T1+T2 be the time of the second success. We are told that the results of the two slots that follow the first success are failures, so that XT1+1=XT1+2=0.

    asked by Alison on November 26, 2018
  32. Statistics

    An economist found that a random sample of 42 high school teachers had an average annual salary of $56,490. A previous study showed that the population standard deviation is $4150. Calculate the margin of error, E, for a 99% confidence interval for µ, the

    asked by Patrick on March 1, 2014
  33. math

    can you please try to help me understand this? Q:The table below shows a distribution and the observed frequencies of the values of a variable from a simple random sample of a population. Perform a chi-square goodness-of-fit test, at the specified

    asked by destiny on December 4, 2011
  34. Math

    A basket of 50 golf balls contains 22 yellow balls. If 8 balls are selected at random from the basket, determine the probability that none of those selected is a yellow ball.

    asked by Jeri on March 3, 2016
  35. statistics

    suppose that 70% of all college students love math. in a random sample of 8 college students, let x be the number of students who love math.find p(x=6)

    asked by harry big on November 18, 2014
  36. maths

    a box contains 20 fuses ,out of which ,5 are defective.if a sample of 3 fuses is chosen from the box at random without replacement,find the probability that x fuses in this sample will be defective

    asked by ashely on February 11, 2012
  37. Statistics

    if 25% of all students asked say they spend too much time on homework, and 12 students are selected at random, what is the expected number of students who say they spend too much time on homework?

    asked by Mo on May 31, 2011
  38. math

    One light bulb is selected at random from a lot of 150 light bulbs, of which 6% are defective. What is the probability that the light bulb selected is defective?

    asked by Vanny on February 20, 2011
  39. statistics

    Data shows that 93% of the people in a certain population are right-handed. A group of 9 people from this population are selected at random. What is the probability that exactly 7 of the people in the group are right-handed? 2

    asked by mark on March 22, 2011
  40. Math

    A bag contains 3 red marbles, 5 yellow marbles, and 4 blue marbles. One marble is chosen at random. What is the probability that the chosen marble will be blue? A) 1/12 B) 1/4 C) 1/3 D) 3/4 I think it is B. 1/4

    asked by Rochelle on June 13, 2016
  41. math

    an urn contains 6 purple marbles and 4 pink marbles. a marble is drawn at random and not replaced. then a second marble is drawn. what is the probability that both marbles are purple?

    asked by juju on February 15, 2013
  42. Statistics

    According to a recent survey, 65% of all customers will return to the same grocery store. Suppose 11 customers are selected at random,what is the probability that A) exactly 5 will return? B) all 11 will return? C) at least 6 will return D) at least one

    asked by Katie on December 9, 2017
  43. Math

    A jar contains 5 blue marble, 8 red marbles, 4 white marbles,and purple marbles. Suppose you pick a marble at random without looking. Find the probability of each event. Choosing a blue marble, putting it back, then choosing a purple? (Simplest form)

    asked by Alice on April 28, 2017
  44. Maths

    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 12, 2017
  45. Math probability

    Assume that 60% of community college students are female. 1) if we pick 100 students at random justify why we can or cannot model this using a normal model. 2) find the probability that between 50 and 70 of the 100 students selected are female. 3) fidn Q1

    asked by Katy on April 8, 2013
  46. Math

    A random survey of 500 households determines that 20% of the households would do so and that each participating household expects to recycle about 100 cans monthly with a standard deviation of 30 cans. Question (a) What is the 95% confidence interval

    asked by Jamie on April 22, 2010
  47. statistics

    Let x and y be the amounts of time (in minutes) that a particular commuter must wait for a train on two independently selected days. Define a new random variable w by w = x + y, the sum of the two waiting times. The set of possible values for w is the

    asked by Jade on June 10, 2013
  48. statistics

    The director of an inner-city hospital believes that the average cost per gunshot injury of patients admitted to the hospital’s emergency room is $18,000. A random sample of 9 gunshot injuries had a mean of $17,213 with a standard deviation of $572.

    asked by Anonymous on August 2, 2011
  49. Help with Psychology Homework

    Your professor asks you to take a personality test. After taking the test, you read your description of your personality type, and are disappointed that the results do not seem to capture your personality at all. In fact, you think the test probably

    asked by Chris on March 24, 2015
  50. stat

    the number of mosquitoes that brown bats can eat in an hour has a mean of 600 and a standard deviation of 200. a study observed a random sample of 80 little brown bats. hat is the minimum no. of mosquitoes that the upper 25% of little brown bats eat in an

    asked by Jeanie on January 17, 2012
  51. statistics

    A population of 200 voters contains 52 Republicans, 128 Democrats, and 20 independents and members of other parties. A simple random sample of 20 voters will be drawn from this population. The expected number of Republicans in the sample is? and The

    asked by Charlie on July 26, 2011
  52. Math 117

    The random variable x is the number of houses sold by a realtor in a single month at the Sendsom's Real Estate office. Its probability distribution is as follows. Find the expected number of houses sold in a month. Houses Sold (x) Probability P(x) 0 0.24 1

    asked by Garcia on August 7, 2009
  53. Statistics

    Suppose x has a mound-shaped distribution with sigma = 9 . A random sample of size 36 has sample mean 20. Is it appropriate to use a normal distribution to compute a confidence interval for the population mean m? Explain. Find a 95% confidence interval for

    asked by Steph on April 27, 2013
  54. statistics/probability

    in testing a new drug. researchers found that 20% of all patients using it will have a mild side effect. a random sample of 14 patients using the drug is selected. find the probability that: a) exactly three will have mild side effects. b) at least four

    asked by mary- please check calculations. on October 23, 2010
  55. Probability and Statistics

    In a toy manufacturing company three machines A,B and C are employed to manufactures toys. Machines A, B and C manufacture 20%, 30% and 50% of the total toys respectively. A quality control officer examined the machines and found that A,B and C produce 2%,

    asked by Question on October 29, 2015
  56. statistics

    Suppose you wanted to test your ESP using an ordinary deck of 52 cards, which has 26 black and 26 red cards. You have a friend shuffle the deck and draw cards at random, replacing the card and reshuffling after each guess. You attempt to guess the color of

    asked by Sydney on October 20, 2012
  57. Statistics

    A random sample of 250 men yielded 175 who said they'd ridden a motorcycle at some time in their lives, while a similar sample of 215 women yielded only 43 that had done so. Find a 99% confidence interval for the difference between the proportions of men

    asked by John on November 5, 2012
  58. statistics

    A pollster conducts a survey of a random sample of voters in a community to estimate the proportion who support a measure on public health insurance. Let P be the proportion of the population who support the measure. The pollster takes the sample of 200

    asked by Jabaar on April 30, 2010
  59. statistics

    A random sample of 250 men yielded 175 who said they'd ridden a motorcycle at some time in their lives, while a similar sample of 215 women yielded only 43 that had done so. Find a 99% confidence interval for the difference between the proportions of men

    asked by John on November 4, 2012
  60. Math

    Managers of a local shopping mall selected a random sample of shoppers and recorded the gender of each. Here are their results. Gender Number of People Male 69 Female 106 Based on this sample, how many of the next 2000 shoppers would we predict to be

    asked by Melanie on August 20, 2017
  61. math

    mr. brunetti writes quadratic equations on a piece of paper and puts them in a hat and then tells his students each to choose two at random.After each student picks,his or her 2 papers go back into the hat. There are 5 papers in total,out of which 4 are

    asked by Anonymous on February 29, 2016
  62. algebra

    Managers of a local shopping mall selected a random sample of shoppers and recorded the gender of each. Here are their results. Gender Number of People Male 75 Female 108 Based on this sample, how many of the next 2000 shoppers would we predict to be male?

    asked by Anonymous on August 8, 2017
  63. integrated math 1- please help!!!

    Among a group of people, 10% are from NYC and 90% are not. All people from NYC are under 18 years old, and 70% of those not from NYC are also under 18 years old. One person is chosen at random, and he or she is under 18. What is the probability that the

    asked by Tifini on November 9, 2012
  64. algebra2/ Trigonometry

    A bag contains 24 green marbles, 22 blue marbles, 14 yellow marbles, and 12 red marbles. Suppose you pick one marble at random. What is each probability? A. P(yellow) B. P( not blue) C. P( green or red) Tip: High School Math

    asked by khiana on June 1, 2014
  65. conditional probability

    Among a group of people, 10% are from NYC and 90% are not. All people from NYC are under 18 years old, and 60% of those not from NYC are also under 18 years old. One person is chosen at random, and he or she is under 18. What is the probability that the

    asked by Tifini on July 17, 2012
  66. Statistics (Check Answer)

    Hi can someone check my answer. I'm not sure why the computer keeps marking it wrong. **Suppose a random sample of size 50 is selected from a population with σ = 10. Find the value of the standard error of the mean in each of the following cases (use the

    asked by Jen on June 16, 2014
  67. math probability

    Laura and Adrian attend a dinner party. The 12 guests are seated at random around a round table, with all seating arrangements equally likely. (a) What is the probability that Laura and Adrian sit next to each other. (b) Explain your answer by giving a

    asked by Steve on June 4, 2018
  68. probability

    Consider an image, in which every pixel takes a value of 1, with probability q, and a value 0, with probability 1−q, where q is the realized value of a random variable Q which is distributed uniformly over the interval [0,1]. The realized value q is the

    asked by Alison on November 16, 2018
  69. Statistics

    A large furniture store has begun a new ad campaign on local television. Before the campaign, the long term mean daily sales were $24,819. A random sample of 40 days during the new ad campaign gave a sample mean daily sale of $25,910. Does this indicate

    asked by Jasmine on March 25, 2012
  70. statistics

    A simple random sample of voters will be taken in a large state. Researchers will use the methods of our course to construct an approximate 95% confidence interval for the percent of the state’s voters who will vote for Candidate X. The minimum sample

    asked by Math-Stastistics on July 25, 2013
  71. Statistics

    A manufacturer makes two models of an item: model I, which accounts for 80% of unit sales, and model II, which accounts for 20% of unit sales. Because of defects, the manufacturer has to replace (or exchange) 10% of its model I and 18% of its model II. If

    asked by Sophia on October 4, 2007
  72. gre math prob of a sample

    sample standard deviation = 3 sample mean = 68 n=30 what is the probability that one student selected at random from the sample will have a height within one sample standard deviation of the sample mean? a. 1.00 b. 0.73 c. 0.57 d. 0.23

    asked by luckybee on January 11, 2012
  73. statistics

    A sample of 36 females is taken. What is the probability that the mean height of these women is shorter than 64 inches if we know the height for all American females is N(63,3^2)? What is the probability that a random woman is shorter than 64 inches?

    asked by Cori on April 4, 2011
  74. math

    A box contains 8 blue balls and 2 red balls. Three balls are selected from the box at random without replacement. Find the probability that two balls are blue and one ball is red.

    asked by Suetusi on May 2, 2011
  75. math problem

    two cards are drawn at random (without replacement) from a regular deck of 52 cards a) what is the probability that the first card is a heart and the second is red? b) what is the probability that the first card is red and the second is a heart?

    asked by sha on July 27, 2010
  76. Math (statistics)

    In an examination a candidate is given the four answers to four questions but is not told which answer applies to which question. He is asked to write down each of the four answers next to its appropriate question. b). show that there are 6 ways of getting

    asked by Heidi on July 8, 2014
  77. math

    In an examination a candidate is given the four answers to four questions but is not told which answer applies to which question. He is asked to write down each of the four answers next to its appropriate question. b). show that there are 6 ways of getting

    asked by Heidi on June 30, 2014
  78. Chemistry

    For each Kinetic Molecular Theory principle, do all gases follow this principle all of the time? why or why not? 1. The space between gas molecules is much larger than the molecules themselves. 2. Gas molecules are in constant random motion. 3. The average

    asked by Anonymous on May 16, 2018
  79. Stats

    Among 15,378 Delta airline passengers randomly selected, 3 were bumped from a flight against there wishes (based on data from the us dept of transportation) find the probability that a random selected passenger is involuntarily bumped. Is such bumping

    asked by Help please! on February 1, 2011
  80. statistics

    If %1 of a popualtion are allergic to peanuts, would it be unusual for a random sample of n=1500 to result in fewer than 10 with peanut allergies? I have figured phat p=10/1500 (-0.007-0.01)/.003=-1 Z-score=-1=.1587 so Iinterpreted this to be 16 samples

    asked by Lindsey*** on July 14, 2008
  81. statistics

    In an election for student council president at Russell Sage College, 80 students were polled and asken for whome the planned to vote. the following results of the poll were Allison 22, Emily 18, Kimberly 20 Johanna 14, Other 6. If one student from Russell

    asked by Krystle on April 5, 2010
  82. stats

    A random sample of mid-sized cars tested for fuel consumption gave a mean of miles per gallon with a standard deviation of miles per gallon. Assuming that the miles per gallon given by all mid-sized cars have a normal distribution, find a confidence

    asked by Anonymous on April 9, 2014
  83. Math

    In Exercises 16–18, use the following information. At a college, 43% of the students are women, 15% of the students are art majors, 4% have not chosen a major, and 8% are women and art majors. A faculty member conducts an experiment and selects students

    asked by Kms on June 9, 2017
  84. statistics

    A random sample of 36 statistics students were asked to add a column of numbers. The amount of time required to compute the sum was recorded for each student. The sample mean time was 54 seconds with a sample standard deviation of 18 seconds. 1. Construct

    asked by Maggi on March 22, 2012
  85. american education

    identify the rights and responsibilities you will have as a teacher in Random student locker searches without permission? is this like to: · attend school free of charge; · attend school and participate in school activities at no expense even though

    asked by scooby91320002 on July 19, 2008
  86. Statistics

    (1) Gluten sensitivity, which is also known as wheat intolerance, affects approximately 15% of people in U.S. Let p be the proportion in a random sample of 800 individuals who have gluten sensitivity. Find the probability that the value of p is (a) Within

    asked by Good learner on July 7, 2012
  87. Statistics

    The Weight of a small Starbucks coffee is 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. a. highest 10% b. highest 50% c. highest 5% D. highest 80% e.

    asked by Kelly on April 11, 2014
  88. probability

    A jar contains 3 red balls and 2 green balls. You draw one ball at random. Determine the probability of selecting a. red b. green c. blue d. red or green p.s: the reason I am asking this questions is because we never learned about it in class and I don't

    asked by Evangelina on March 18, 2011
  89. statistics

    1.a person selects a card from a deck .it is a red card ,he wns 1$.if it is black face card between or including 2 and 10,he wins $5.if it is black face card,he wins $10 and if it is black ace,he wins $100.find the expectation of the game is to be fair?

    asked by Maro on December 3, 2011
  90. Math

    Let's propose a hypothetical situation where you plan to apply your newly acquired analytical skills to the end of the baseball season. The Dodgers most recent win percentage is 0.569. Assume that the team that they are playing and home field advantage is

    asked by Reply me as well on October 1, 2016
  91. quantitative methods

    a packing device is set to fill detergent powder packet with a mean weight of 5 kg . The standard deviation is known to be 0.01 kg. these are known to drift upwards over a period of time due to machine fault, which is not tolerable. A random sample of 100

    asked by john on January 9, 2015
  92. Math & Stats

    Please help I was up till 2am trying to figure this out last night, Thanks The top selling Red and Voss is rated 70,000 miles, which means nothing. In fact, the distance the tires can run until they wear out is a normally distributed random variable with a

    asked by Tiffany on February 12, 2011
  93. statistics

    Among 15 metal parts produced in a machine shop, 4 are defective. If a random sample of five of these metal parts is selected, find a) The probability that this sample will contain at least three defectives. b) The probability that this sample will contain

    asked by akb on March 23, 2016
  94. math

    a box filled with identically shaped balls contains 5 balls with the number 1 on them, 8 balls with the numbers 10 on them, 15 balls with the number 12, and 2 balls with the number 20 on them. If the balls cannot be seen from outside the box, and if one

    asked by tg on July 31, 2013
  95. math-probability

    A factory produces fuses, which are packaged in boxes of 17. Three fuses are selected at random from each box for inspection. The box is rejected if at least one of these three fuses is defective. What is the probability that a box containing two defective

    asked by Emma on March 17, 2012
  96. statistics

    Among 15 metal parts produced in a machine shop, 4 are defective. If a random sample of five of these metal parts is selected, find a) The probability that this sample will contain at least three defectives. b) The probability that this sample will contain

    asked by akb on March 23, 2016
  97. Math

    A factory produces fuses, which are packaged in boxes of 16. Three fuses are selected at random from each box for inspection. The box is rejected if at least one of the three fuses is defective. What is the probability that a box containing six defective

    asked by Miranda on July 10, 2014
  98. Statics

    17. The Student Health Service assumes, based on historical data, that the height of female students is normally distributed with a standard deviation of 3 inches. The school nurse wants to estimate the average height of this year’s entering female

    asked by Heather on December 2, 2012
  99. word problem

    A study reported that in a random sampling of 100 women over the age of 35 showed that 8 of the women were married 2 or more times. Based on the study results, how many women in a group of 5000 women over the age of 35 would likely be married 2 or more

    asked by Anonymous on March 4, 2009
  100. statistics

    Forty-four percent of customers who visit a department store make a purchase. The probability, rounded to four decimal places, that in a random sample of 9 customers who will visit this department store, exactly 6 will make a purchase is:

    asked by Tom on October 27, 2013

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