B. 70% of people believe in love at first sight. Suppose we take a random sample of 30 people.What is the probability that:1. Exactly 18 of them believe in love at first sight?Text2. 24 or more of them believe in love at first sight?3.Fewer than 18 of them believe in love at first sight?4. Extra fun (no points) Use your answer from #3 to answer this question: If you did repeatedsamples of 30 individuals from the larger population, how many samples would you expect tohave to take to find a group where fewer than 18 of them believe in love at first sight?

B. 70% of people believe in love at first sight. Suppose we take a random sample of 30 people. What is the probability that: 1. Exactly 18 of them believe in love at first sight? Text 2. 24 or more of them believe in love at first sight? 3. Fewer than 18 of them believe in love at first sight?

B. 70% of people believe in love at first sight. Suppose we take a random sample of 30 people. What is the probability that: 1. Exactly 18 of them believe in love at first sight? Text 2. 24 or more of them believe in love at first sight? 3. Fewer than 18 of them believe in love at first sight?

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

In the United States, voters who are neither Democrat nor Republican are called Independent. It is believed that 11% of voters are Independent. A survey asked 25 people to identify themselves as Democrat, Republican, or Independent. A. What is the probability that none of the people are Independent? Probability = B. What is the probability that fewer than 5 are Independent? Probability = C. What is the probability that more than 2 people are Independent? Probability =
Text message users receive or send an average of 41.5 text messages per day. a. How many text messages does a text message user receive or send per hour? b. What is the probability that a text message user receives or sends two messages per hour? c. What is the probability that a text message user receives or sends more than two messages per hour?
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.
7. According to a college survey, 22% of all students work full time. In a survey of 14 students, what is the probability that no more than 2 of them work full time?
In the United States, voters who are neither Democrat nor Republican are called Independent. It is believed that 11% of voters are Independent. A survey asked 20 people to identify themselves as Democrat, Republican, or Independent. A. What is the probability that none of the people are Independent? Probability = B. What is the probability that fewer than 7 are Independent? Probability = C. What is the probability that more than 3 people are Independent? Probability =
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%?
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.
Pet owners often have more than one type of pet. A recent survey shows that 70% own a dog, 44% own a cat, and 30% own both a dog and cat. Suppose a person is randomly selected. Determine the probability this person 1. has a dog or a cat or both. 2. does not have a dog nor a cat. 3. only has a dog. 4. Given the person has a dog, what is the probability that this person has a cat?
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.
29% of all college students major in STEM (Science, Technology, Engineering, and Math). If 44 college students are randomly selected, find the probability that a. Exactly 10 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 7 and 15 (including 7 and 15) of them major in STEM.
7. 64% of all violent felons in the prison system are repeat offenders. If 40 violent felons are randomly selected, find the probability that a. Exactly 23 of them are repeat offenders. ?b. At most 28 of them are repeat offenders. ?c. At least 27 of them are repeat offenders. ?d. Between 23 and 30 (including 23 and 30) of them are repeat offenders. ?