2. Research shows that 17% of children are absent from school on at least five days duringwinter because of ill health. A random sample of 55 children is taken.a. Find the probability that exactly 10 of the children in the sample are absent from schoolon at least five days during winter because of ill health.b. Use a suitable approximation to find the probability that at most seven children in thesample are absent from school on at least 5 days during winter because of ill health.c. Justify the approximation made in part b.

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Answered: 2. Research shows that 17% of children…

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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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.
The number of calls received by a mountain search and rescue team in a day has a mean of 0.70. Find the probability that on a randomly selected day, they will receive fewer than two calls. O a. 0.844 O b. 0.156 O c. 0.122 O d. 0.348
A class president is favored by 53% of all students voting, assuming this is accurate, a random sample of 400 students are surveyed. 1. What is the probability that less than 49% will favor this student? 2. What is the probability that more than 57% will favor the student?
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.
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.
61% of all violent felons in the prison system are repeat offenders. If 41 violent felons are randomly selected, find the probability that a. Exactly 24 of them are repeat offenders. b. At most 26 of them are repeat offenders. c. At least 22 of them are repeat offenders. d. Between 22 and 27 (including 22 and 27) 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.
Assume that when human resource managers are randomly selected, 38% say job applicants should follow up within two weeks. If 30 human resource managers are randomly selected, find the probability that exactly 23 of them say job applicants should follow up within two weeks. a.The probability is?

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