A retail variety store that advertises extensively by mail circulars expects a sale with20% probability. Suppose 30 prospects are randomly selected from a city-widemailing.c. What is the probability that at least 12 sales will result from mailing to the 30prospects?0.0094930.50.423674Jimmy and Rosalynn Carter celebrate0.9838772

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Answered: A retail variety store that advertises…

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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A sociologist is analyzing Social Security data. The number of individuals in the sample is 5. The probability that an individual receives Social Security is 20%. What is the probability that exactly 3 of the 5 individuals receive Social Security? O 0.0512 O 0.0305 O 0.6125 O 0.1024
Suppose 40% of recent college graduates plan on pursuing a graduate degree. Fifteen recent college graduates are randomly selected. a. What is the probability that no more than four of the college graduates plan to pursue a graduate degree? (Do not round intermediate calculations. Round your final answer to 4 decimal places.) b. What is the probability that exactly seven of the college graduates plan to pursue a graduate degree? (Do not round intermediate calculations. Round your final answer to 4 decimal places.) c. What is the probability that at least six but no more than nine of the college graduates plan to pursue a graduate degree? (Do not round intermediate calculations. Round your final answer to 4 decimal places.)
Approximately 20% of U.S. workers are afraid that they will never be able to retire. Suppose 10 workers are randomly selected. a. What is the probability that none of the workers is afraid that they will never be able to retire?
A retail variety store that advertises extensively by mail circulars expects a sale with 20% probability. Suppose 30 prospects are randomly selected from a city-wide mailing. c. What is the probability that at least 12 sales will result from mailing to the 30 prospects
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.
It has been determined that there is a 75% chance of a person using their seatbelt when sitting in the back seat of a car. If 8 people leave a party and take cabs home, which of the following would be used to find the probability that 6 of them use their seatbelt when sitting in the back seat?
A math class consists of 21 female students and 15 male students. Two students are selected at random to participate in a probability experiment. Compute the following probabilities. Write your answers in decimal form. Round to the nearest thousandth as needed. e. No males are selected. ?
Assume that when human resource managers are randomly selected, 54% say job applicants should follow up within two weeks. If 7 human resource managers are randomly selected, find the probability that exactly 4 of them say job applicants should follow up within two weeks. a.The probability is?
Suppose 42% of recent college graduates plan on pursuing a graduate degree. Eighteen recent college graduates are randomly selected. a. What is the probability that no more than five of the college graduates plan to pursue a graduate degree? Note: Do not round intermediate calculations. Round your final answer to 4 decimal places. Probability b. What is the probability that exactly eight of the college graduates plan to pursue a graduate degree? Note: Do not round intermediate calculations. Round your final answer to 4 decimal places. Probability c. What is the probability that at least eight but no more than eleven of the college graduates plan to pursue a graduate degree? Note: Do not round intermediate calculations. Round your final answer to 4 decimal places. Probability
Suppose that 30% of all college freshmen gain weight. A sample of 18 is selected randomly. What is the probability that exactly 3 freshmen gain weight?
A car insurance company has determined that 9% of all drivers were involved in a car accident last year. Among the 10 drivers living on one particular street, 3 were involved in a car accident last year. If 10 drivers are randomly selected, what is the probability of getting 3 or more who were involved in a car accident last year? O a. O b. O C. O d. 0.4435 0.9548 0.0541 0.0452
16 percent of the customers of a mortgage company default on their payments. A sample of 5 customers is selected. What is the probability that exactly 2 customers in the sample will default on their payments? Answer:

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