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show work A survey of 400 peopl found that 66 were left handed. What percent of those surveyed were left handed?

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  1. math

    show work A survey of 400 peopl found that 66 were left handed. What percent of those surveyed were left handed?
  2. math

    400 people found that 66 were left-handed. What percent of the 400 were left-handed? percent= 66/400 * 100
  3. 8th grade

    People can be left-handed, right-handed or ambidextrous. The number of boys in Canadian secondary schools who are left handed is about 1/7 the number of boys who are right-handed. About 11% of boys are left-handed. Write and solve an equation to determine
  4. Math

    Left hand! right hand Female___!________ Male_____!_______ Total-18 ! 122 The incomplete table above summarizes the number of left-handed students and right-handed students by gender for the eighth grade students at Keisel Middle School. There are 5 times
  5. Algebra

    The incomplete table below summarizes the number of left-handed students and right-handed students by gender for the eighth grade students at Keisel Middle School. There are 6 times as many right-handed female students as there are left-handed female
  6. math check

    Suppose that you are in a class of 31 students and it is assumed that approximately 13% of the population is left-handed. (Give your answers correct to three decimal places.) (a) Compute the probability that exactly five students are left-handed.
  7. Algebra 2 - stats and probability

    I need someone to tell me how to set these up please? 1. A box contains 4 quarters. 2 of the quarters have the American eagle on the back. Suppose you draw 2 quarters at random with replacement. a. What's the probability that both have the American eagle
  8. Math statistics

    Ten percent of Americans adults are left-handed. A statistics class has 50 students in attendance. Find the standard deviation for the number of left-handed students in such classes of 50 students
  9. statistics

    In a survey of 400 college students, 40 were left-handed. Treating the sample as if it were random and using 0.015 as the standard deviation of the sampling distribution of the sample proportion, what is the lower bound of a 95% confidence interval for the
  10. Math

    A sport store received a shipment of 400 baseball gloves. 30% were left- handed. How many left-handed gloves were in the shipment?
  11. STATISTICS

    Suppose that you are in a class of 29 students and it is assumed that approximately 16% of the population is left-handed. (Give your answers correct to three decimal places.) (a) Compute the probability that exactly five students are left-handed. (b)
  12. Stats

    Suppose that you are in a class of 31 students and it is assumed that approximately 10% of the population is left-handed. (Give your answers correct to three decimal places.) (a) Compute the probability that exactly five students are left-handed. (b)
  13. Statistics

    Suppose that you are in a class of 31 students and it is assumed that approximately 13% of the population is left-handed. (Give your answers correct to three decimal places.) (a) Compute the probability that exactly five students are left-handed. (b)
  14. Math check answer

    Suppose that you are in a class of 31 students and it is assumed that approximately 13% of the population is left-handed. (Give your answers correct to three decimal places.) (a) Compute the probability that exactly five students are left-handed. Answer
  15. math

    Janice conducted a survey at the local calculator factory. She discovered that 10% of every 80 calculators did not work. Using this survey, what kind of predictions can she make about the next 400 calculators? a-not enough information b-40 will not work
  16. math

    for every left-handed person there are about 4 right-handed persons. If there are 30 studentsa in a class write and solve a proportion to predict the number of students who are right-handed.
  17. algebra

    find the value of x and y x+y=12 45x+52y=561 a sporting goods store sold right hand and left hand batting gloves.12 were sold in a one month period for $561.right handed gloves are $45 and left handed gloves are $52.how many of each were sold? please show
  18. math

    An estimated 3 out of every 25 men are left-handed. What percent of men are left-handed?
  19. math

    An estimated 3 out of every 25 men are left-handed What percent of men are left-handed?
  20. statistics

    according to data from the american medical association, 10% of us are left handed. If three people, are randomly selected find the probability that they are all left handed. If groups of 50 people are randomly selected, what is the mean and stadard
  21. statistics

    The probability that a randomly selected person in the United States is left-handed is about 0.14. (a) Among the 28 students in Mr. Miller’s class, 8 are left-handed. Could this have happened by chance alone? Describe how you would use a random number
  22. Statistics help

    Suppose that you are in a class of 32 students and it is assumed that approximately 9% of the population is left-handed. (Give your answers correct to three decimal places.) (a) Compute the probability that exactly five students are left-handed. Incorrect:
  23. Statistics

    A study shows that 10% of americans are left-handed. Find the probability that at most one student is left handed in a class of 20 students.
  24. English

    A married couple met at Juanita College in Huntingdon, Pennslvania. They are both left-handed,and they have set up a scholarship for needy left handed students attending Juanita. Here is my answer does it make sense? A married couple who met at Juniata
  25. matj

    in a class there are 17 right handed students and 3 left handed students, what percent of the class is right handed?
  26. math

    answer is this event impossible. unlikely,as likely as not,likely or certain 3. there are 8 right-handed pitchers and 2 left-handed pitchers on the tigeris baseball team. how likely is it that their opponents will face a right-handed pitcher
  27. Math

    What is the marginal distribution for right handed people Dominant Hand vs Height Short Medium Tall Total left handed 4 6 2 12 right handed 24 20 19 63 total 28 26 21 75
  28. SCIENCE

    mr. and mrs. diego speak spanish and english. THEY BOTH HAVE LONG EYELASHES AND BROWN EYES. MRS DIEGO IS RIGHT-HANDED AND PLAYS BASKETBALL. MR. DIEGO IS LEFT-HANDED AND PLAYS PIANO. UNDER WHAT CIRCUMSTANCES COULD THEY HAVE A BLUE-EYED, LEFT-HANDED CHILD?
  29. Statistics

    About 13% of the population is left handed. If two people are randomly selected what is the probability that both are left handed?
  30. math check

    Posted by Nora 56 on Sunday, June 2, 2013 at 7:32pm. Sorry to repost but no one answered after I posted on the 2nd,please help, Suppose that you are in a class of 31 students and it is assumed that approximately 13% of the population is left-handed. (Give
  31. Math

    For every left handed person, there are 4 right handed persons. If there are 30 students in the class predict the number of students who are right handed.
  32. math

    if 11% of the population is left handed, what is the porbability that as least one of the first 20 strangers you meet is left handed
  33. Statistics

    One-fifth of the population is left-handed. A random sample of 20 people is selected. a) What is the probability that no more than 6 of the next 20 people are left-handed. b) What is the probability that at least 4 of the next 20 people are left-handed.
  34. statistics

    Suppose that you are in a class of 28 students and it is assumed that approximately 8% of the population is left-handed. (Give your answers correct to three decimal place. Compute the probability that exactly five students are left-handed
  35. math

    Freshman Sophomore Junior Senior Left-handed batters 4 6 5 4 Right-handed batters 13 10 11 12 A school baseball team has 65 players. What is the probability that a randomly chosen player is a junior or a right-handed batter?
  36. algebra 1

    the ratio of right handed to left handed students in the school was 3 to 14. if the total number in both categories was 714 how many right handed students were in the school? please help its due tomorrow! i totally forgot about the extra homework my
  37. stats

    i need help with this Question The following data represents Total Credit Hours from our class survey. 90 54 98 45 65 43 12 48 56 12 15 60 38 18 67 125 50 43 26 64 22 52 69 You may use your calculator to find the following statistics: Mean __________
  38. STATS

    i need help with this Question The following data represents Total Credit Hours from our class survey. 90 54 98 45 65 43 12 48 56 12 15 60 38 18 67 125 50 43 26 64 22 52 69 You may use your calculator to find the following statistics: Mean __________
  39. Math

    A sample of 50 children had one child that is left-handed. If there are 750 children in a school, how many should be left-handed?
  40. sat

    12 pitchers and 3 pitcher's is left handed, one radom chosen what probability the pitcher is left handed?
  41. Statisitics

    Identify the population, and the sample in each of the following: A small college has 275 tenured full and associate professors. Twenty professors are randomly chosen to take part in a survey about the incorporation of technology into their teaching
  42. Data analysis

    You plan to survey people to see what percent own their home and what percent rent. Which survey is most likely to give you a random sample? a. You mail a survey to every 10th address from a list of retirement community addresses. b. You interview people
  43. math

    a university surveys a randomly selected group of 250 freshmen. In the group, 20 of the freshmen were left-handed. If there are 8,000 in the freshman class, what is the best prediction fo the number of left-handed freshmen students? THANK YOU!
  44. Statistics

    In a certain class 27% of the students are left-handed. suppose that a random sample of 53 students is selected. Find the mean number of left-handed students in the class. Round your answer to the nearest integer. Pls help!
  45. Statistics

    In a certain class 27% of the students are left-handed. suppose that a random sample of 53 students is selected. Find the mean number of left-handed students in the class. Round your answer to the nearest integer.
  46. Math

    Approximately 1 in every 10 people is left handed. How many left handed people would you expect to find in a group of 430 people?
  47. marketing

    Binomial probability distributions are used in business, science, engineering, and other fields. Suppose you work for a marketing agency and have to create a television ad for Brand A toothpaste. The toothpaste manufacturer claims that 40% of the
  48. physical education

    IF I'M RIGHT HANDED, HOW DO I DO A CARTWHEEL? I'M IN CHEERLEADING, AND I NEED SOME SERIOUSLY HELP. PLEASE HELP ME SOON! (IN THE NEXT 2 DATS!) My best guess -- Lead with your right foot; then your right hand, then left hand, then left foot, then right foot.
  49. statistics

    in a sample of 1000 people ,113 are left handed.the results of the sample are shown in the table.find the probability that a randomly selected person is a left handed,given that she is a woman.
  50. Statistics

    Please help me figure them out. 1. In the 105th Congress, the Senate consist of 55 Republicans and 45 Democrats. If a committee is formed by randomly selecting four different senators, what is the probability that they're all Republicans? 2. It's common
  51. statics

    A manufacturer of golf equipment wishes to estimate the number of left-handed golfers. How large a sample is needed in order to be 90% confident that the sample proportion will not differ from the true proportion by more than 2%? A previous study indicates
  52. Stats

    A manufacturer of golf equipment wishes to estimate the number of left-handed golfers. How large a sample is needed in order to be 90% confident that the sample proportion will not differ from the true proportion by more than 2%? A previous study indicates
  53. Math

    URGENT! In a school, 8% of students are left handed. If 50 classes of 20 students are randomly selected, what is the probability of 10 classes have no left handed students? I know that this is a binomial distribution question, but I can't seem to do this
  54. English

    1. He is reft-handed. 2. He is right-handed. 3. He is ambidextrous. 4. He is a right-handed person. 5. He is a left-handed person. 6. He is an ambidextrous person. 7. He is an ambidexter. (Are all the expressions f grammatical? Do you have some more common
  55. pregunta

    palabra que comiense con la letra z , que describa algo de una persona Primero le agradecemos visitar Jiskha Homework Help Forum. ¿Le gustaría un buen diccionario? http://tradu.scig.uniovi.es/trad.html Aquí hay unos adjetivos: zafo, -a = unhurt zaguero,
  56. math help

    A survey was done recently by the Royal Bank with Ipsos Reid (reported in Globe and Mail Aug 16 2010) about financial issues that university students face. (Data used here is based on that survey, but randomized to be still within the margin of error of
  57. stats

    A survey was done recently by the Royal Bank with Ipsos Reid (reported in Globe and Mail Aug 16 2010) about financial issues that university students face. (Data used here is based on that survey, but randomized to be still within the margin of error of
  58. math

    in a class there are 17 right handed students and 3 left handed students, what fraction of the class is left-handed?
  59. 7th Pre-Algebra Word Problem

    Approximately one-seventh of the people in the United States are left-handed. The population of the United States is about 300 million. Write and solve an equation to estimate howmany people in the United States are left handed.
  60. statistics

    The director of a health club conducted a survey and found that 23% of memebers used only the pool for workouts. Based on this information, what is the probablity that for a random sample of 10 members, 4 used only the pool for workouts? Please show work
  61. statistics

    A survey for brand recognition is done and it is determined that 68% of consumers have heard of Dull Computer Company. If a survey of 800 randomly selected consumers is to be held would it be unusual for 554 of them to recognize Dull Computer Company?
  62. Composition

    I have been working on a paper for a week, the first day we found out. and It is due tommorrow. I have check and rewritten entire paragraphs because I didn't think that they made sense. I have worked countless hours and finnaly handed it into my teacher
  63. Physics

    A 1,200 kg car initially traveling at 20 meters/second increases its speed to 28 meters/second. How much work did the car's engine have to do to cause this change? A. 38,400 Joules B. 230,400 Joules C. 240,000 Joules D. 470,400 Joules (Show work will ya
  64. college algebra

    3. Students in an English class took a final exam. They took equivalent forms of the exam at monthly intervals thereafter. The average score S(t), in percent, after t months was found to be given by S(t) = 68 − 20 log (t + 1), t ¡Ý 0. What was the
  65. prealgebra

    can you please help me and help me solve this and show work: Identify the percent of change as an increase or a decrease. Then find the percent of change. #1.) Original:45 New:30 Please help i don't understand how to solve and show work
  66. science

    what is the probability of a right handed person and a left handed person having a heterozygous child? homozygous dominant? homozygous recessive?
  67. algebra

    find the value of x and y x+y=12 45x+52y=561 a sporting goods store sold right hand and left hand batting gloves.12 were sold in a one month period for $561.right handed gloves are $45 and left handed gloves are $52.how many of each were sold? Please only
  68. Math

    1. Write the fraction 8/9 as a percent. Round to the nearest hundredth of a percent where necessary. 88.89% 1.13% 44.44% 66.67% 2.Write the decimal 0.041 as a percent 41% 4.1% 410% 0.41% 3.A survey at your school found that 792 in 1,220 students have a
  69. Math

    David wants to survey his friends about their favorite animal. He distributes the following survey. Is this an appropriate survey for David to use? Dogs are - 68% Other 32% A - Yes, with this survey David can tell what his friends' favorite animals are B -
  70. Electrophoresis

    You need to prepare 400 ml of a 4M glucose solution. It's chemical formula is C6H12O6 and its formula weight (FW) 180.16. Must show all work and calculation and then list what you will mix together to prepare the correct amount of this solution. 180.16 of
  71. 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.
  72. pre-cal

    aj uses a lingshot to launch a rock straight up from the a point of 6 ft. above ground level with an initial velocity of 170 ft per second. A) find an equation that models the height of the rock t seconds after it is launched. b) what is the maximum height
  73. science

    An electric motor is tested and found 76% efficient. if the input work is 400 J, what is the motors output work?
  74. physics

    An electric motor is tested and found 76% efficient. if the input work is 400 J, what is the motors output work?
  75. math

    you plan to survey people to see what percent own their home and what percent rent. tell whether the following will give a random sample. justify ur answer. a you interview people outside a pool supply sotre in the suburbs. b you interview people in the
  76. Economics

    One year ago, you bought a bond for $10,000. You received interest of $400 at the end of the year, as well as your $10,000 principal. If the inflation rate over the last year was five percent, calculate the real return. Show your work
  77. Economics

    One year ago, you bought a bond for $10,000.00. You received interest of $400.00 at the end of the year, as well as your $10,000.00 principal. If the inflation rate over the last year was five percent, calculate the real return. Show your work.
  78. Finance

    One year ago, you bought a bond for $10,000. You received interest of $400 at the end of the year, as well as your $10,000 principal. If the inflation rate over the last year was five percent, calculate the real return. Show your work.
  79. Percentage

    There are 90 girls and 60 boys in the sixth grade at a middle school. Of these students, 9 girls and 3 boys write left-handed. What percentage of the sixth graders at this middle school write left-handed? A. 10 % B. 8 % C. 5 % D. 15 %
  80. statistics

    You plan to conduct a survey to find what proportion of the workforce has two or more jobs. You decide on the 90 percent confidence level and state that the estimated proportion must be within 2 percent of the population proportion. A pilot survey reveals
  81. Pre Algebra

    Help me with these! If I dont finish this test, my mom is gonna make me quit gymnastics forever, and I have a meet coming up! Please from the kindness of your heart, Explain how to work this out. But dont call me a cheater because im not here to have it
  82. Physic II

    How much work is done by 3 moles of gas when they triple their volume at a constant temperature of 400 K ? show work please
  83. statistics

    7. In a certain survey, 30% of those questioned are given an incentive to complete the survey. Of those who receive incentives, 80% completed the survey. Of those who do not receive incentives, 25% completed the survey. a. Find the probability of getting
  84. math

    Ali and her friend handed out nutrition pamphlets at the health fair. they were given 560 pamphlets and they handed out 35% of them. How many pamphlets were left at the end of the health fair?
  85. Math

    PLEASE PLEASE HELP ME WITH THESE 2 PROBLEMS STEP BY STEP AND SHOW WORK! z/12=9 what is the value of z show how you found it. 5 x g= 230 what is the value of g show how you found it. PLEASE I REALLY NEED HELP!!!
  86. AP Chemistry

    An organic compound was synthesized and found to contain only C, H, N, O, and Cl. It was observed that when .150g sample of the compound was burned, it produced .138g of CO2 and .0566g of H2O. All the Nitrogen in a different .200g sample of the compound
  87. Pre-Calc

    Find the vertical asymptotes, if any, of the graph of the rational function. Show your work. f(x) = (x-4)/(x(x-4)) How would I show my work? the x-4 cancel out and I am left with 1/x. The vertical asymp. is x= 0
  88. Maths

    If 3/4 of the class are boys and 2/7 of the class are left-handed boys, what fraction of the boys are left-handed
  89. Math

    In Mrs. Wallace's science class one half of the students are boys of the boys 1/8 or left-handed what fraction of the students and Mrs. Wallace's science class are left handed
  90. math

    the probability that an imdividual is left-handed is 0.30 in a class of 25 students, what is the the mean and standard deviation of the number of left-handers in the class
  91. Statistics

    The results of a nationwide survey show that 57.40% of college students have violated rules of alcohol use. The margin of error for the survey is 2.30%. What does this mean?
  92. Math-Statistics

    Find a confidence interval for ƒÊ assuming that each sample is from a normal population. a. �P x = 14, ƒÐ = 4, n = 5, 90 percent confidence b. �P x = 37, ƒÐ = 5, n = 15, 99 percent confidence c. �P x = 121, ƒÐ = 15, n = 25, 95 percent confidence
  93. math

    Suppose a number is chosen at random from the sample space {3, 4, 5, 6, 7}. Find the probability as a fraction and percent. Round the percent to the nearest tenth. Please show your work. P(less than 3)
  94. Environmental Science

    Ninety seven percent of the world's water resources are found in a.fresh water b.salt water c.icecaps and glaciers d.groundwater This is my Science test that i got back from my Science teacher. My grade is a 69 0n it. She told me to work and check on it
  95. finance

    10. A firm has a beta of 1.2. The market return equals 14 percent and the risk-free rate of return equals 6 percent. The estimated cost of common stock equity is _____ percent. (Please calculate the arithmetic solution and show your work)
  96. Biochemistry

    Match the protein to the descriptions. The protein to consider here is alpha-keratin. There may be several answers for some of these. Select all that apply. => No partial credit. contains intrachain hydrogen bonds contains heptad repeats contains Glycine
  97. ECON!

    Happiness Is ... Being Old, Male and Republican Americans grow happier as they age, surveys find. And a new Pew Research Center survey shows the tendency is holding up as the economy tanks. Happiness is a complex thing. Past studies have found that
  98. econ

    I'm in an econ class and i need at least 4 connections and the reason from this article. Happiness Is ... Being Old, Male and Republican Americans grow happier as they age, surveys find. And a new Pew Research Center survey shows the tendency is holding up
  99. Statistics

    You are getting ready to take a sample from a large population, and need to determine the appropriate sample size. You are estimating sales at a large chain of department stores. A previous survey from the same population found a standard deviation of $18.
  100. Maths

    How do I work out how much is left of something after a percent has been taken. For example: $50 has 25% taken of it how much of the $50 is left?

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