In a particular retail clothing store, approximately 25% of potential customers who walkinto the store make a purchase.In a random sample of 20 customers that walked into the store,a. what is the probability that exactly 10 of the customers make purchases?Round to 3 significant digits.b. what is the probability that at least 2 of the customers make purchases?←SUSIDaSAMSUNGSUBMIT QUESTIONSAVE PROGRESSSUBMIT A c. how many of the customers are expected to make purchases?wwwRound to 3 significant digits.rsd. what is the standard deviation of the number of customers who make purchases?SAMSUNGSUBMIT QUESTIONSAVE PROGRESS-SUB

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Answered: In a particular retail clothing store,…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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According to government data, 73% of employed women have never been married. Rounding to 4 decimal places, if 15 employed women are randomly selected: a. What is the probability that exactly 2 of them have never been married? b. That at most 2 of them have never been married? c. That at least 13 of them have been married?
35% of all college students major in STEM (Science, Technology, Engineering, and Math). If 36 college students are randomly selected, find the probability that a. Exactly 14 of them major in STEM. b. At most 14 of them major in STEM. c. At least 12 of them major in STEM. d. Between 8 and 14 (including 8 and 14) of them major in STEM.
48% of all violent felons in the prison system are repeat offenders. If 38 violent felons are randomly selected, find the probability that a. Exactly 17 of them are repeat offenders. b. At most 17 of them are repeat offenders. c. At least 17 of them are repeat offenders. d. Between 14 and 20 (including 14 and 20) of them are repeat offenders.
In a recent poll of female college students, 70% stated that they plan to graduate with a STEM degree. A math teacher decides to randomly sample 15 female college students. A. Find the probability that exactly 6 out of the 15 plan to graduate with a STEM degree. B. Find the probability that between 5 and 9 (inclusive) out of the 15 plan to graduate with a STEM degree. C. Find the probability that at least 7 out of the 15 plan to graduate with a STEM degree. D. Find the expected number of female college students out of the 15 that plan to graduate with a STEM degree.
a. Assuming that the rate of 23.9% is correct, find the probability that 398 or more of the 1482 adults have sleepwalked. b. Is that result of 398 or more significantly high? c. What does the result suggest about the rate of 23.9%?
In the United States, voters who are neither Democrat nor Republican are called Independent. It is believed that 7% of voters are Independent. A survey asked 9 people to identify themselves as Democrat, Republican, or Independent. A. What is the probability that none of the people are Independent? B. What is the probability that fewer than 5 are Independent? C. What is the probability that more than 3 people are Independent?
Suppose the probability that a randomly selected PGA Tour player uses a Titleist brand golf ball is 0.6. For a sample of 10 PGA Tour players: a. find the probability that more than 7 use a Titleist brand golf ball. b. find the probability that at most 5 is using a Titleist brand golf ball Show your works and use the table.
46% of all violent felons in the prison system are repeat offenders. If 49 violent felons are randomly selected, find the probability that a. Exactly 22 of them are repeat offenders. b. At most 25 of them are repeat offenders. c. At least 20 of them are repeat offenders. d. Between 17 and 24 (including 17 and 24) of them are repeat offenders.
48% of all violent felons in the prison system are repeat offenders. If 44 violent felons are randomly selected, find the probability that a. Exactly 18 of them are repeat offenders. Correct b. At most 20 of them are repeat offenders. c. At least 19 of them are repeat offenders. d. Between 14 and 19 (including 14 and 19) of them are repeat offenders.
Seventy-five percent of the students applying to a university are accepted. Using the binomial probability tables, what is the probability that among the next 18 applicants a. At least 6 will be accepted? b. Exactly 10 will be accepted? c. Exactly 8 will be rejected?
55% of all violent felons in the prison system are repeat offenders. If 38 violent felons are randomly selected, find the probability that a. Exactly 22 of them are repeat offenders. b. At most 20 of them are repeat offenders. c. At least 20 of them are repeat offenders. d. Between 18 and 23 (including 18 and 23) of them are repeat offenders.
In a sample of college students, 100 live on campus, 60 live with family off campus, and 40 live in an apartment off campus. A.What is the probability a randomly selected student lives off campus? B. Explain why this is an example of empirical probability.

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