**Question 5**About 62% of people who are murdered knew the person who committed the murder.Suppose that Detective Moore's case load currently has 50 unsolved murders. Use a normal distribution approximation to the binomial distribution to find the following probabilities:a. What is the probability that no more than 28 of the victims among Detective Moore's case files knew their murderer?[Text box for answer]b. What is the probability that between 28 and 34 of the victims knew their murderer?[Text box for answer]

From the provided information, About 62% of people who are murdered knew the person who committed…

Answered: About 62% of people who are murdered…

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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If a seed is planted, it has a 55% chance of growing into a healthy plant. Let X be the number of seeds grow into healthy plants when 55 seeds are planted. a. What is the distribution of X?X - ? ✓ Please show the following answers to 4 decimal places. b. What is the probability that exactly 30 seeds grow into healthy plants? c. What is the probability that at most 30 seeds grow into healthy plants? d. What is the probability that more than 30 seeds grow into healthy plants? e. What is the probability that between 25 and 32 (including 25 and 32) seeds grow into healthy plants?
Researchers are concerned about the rise in gun violence in their community among the adolescent population. Suppose the researchers believe that this rise in violence is due to an increase in depressive symptoms among the demographic aged 11-17. Suppose the researchers estimate that only 21% of this population suffers from depressive-like symptoms. Use a binomial distribution to solve for the following. a) What is the probability of finding no one with depressive-like symptoms in a sample of 8? b) What is the probability that at least 2 respondents of a sample of 8 report these symptoms? c) What is the expected number of adolescents in the sample to report the symptoms?
If Y is a random variable from an exponential distribution with a mean of 5; what is the probability that Y is more than 7?
suppose we select an SRS of 1010 adults. If it is believed that 60% of all adults are very satisfied with their lives, what is the probability that at least 610 adults in our sample are very satisfied with their lives?Let X be the number (out of 1010) of adults who are very satisfied with their lives. What distribution should X have? Why?
In a binomial distribution, n=8 and pie=0.36. Find the probabilities of the following events. a. X=5 b. X<=5 c. X>=6
Suppose that 84% of all customers who use the service department at a certain automotive dealership would recommend the service to a friend. A random sample of 50 customers is taken. Canwe use the Normal distribution to compute probabilities about the sample proportion of thosewho would recommend the service to a friend? Why or why not?
Suppose a set of 100 random numbers is normally distributed, with a mean of 50 and standard deviation 2. What is the probability of leaving the number 50?
Suppose annual expenditures on the UCI branded clothing and accessories per student are uniformly distributed between $60 and $70. A What is the probability that a student will spend more than $67? B. What is the probability that a student will spend less than or equal to $62? C. What is the probability that a student will spend between $64 and $68? D. What is the probability that a student will spend between $68 and $75? E Determine the expected spending on UCI branded clothing and accessories per student. F. Determine the standard deviation of the expenditures on UCI branded clothing and accessories per student.
A concern for many adults is that computers and the Internet are reducing privacy. A survey conducted by Peter D. Hart Research Associates for the Shell Poll was reported in the USA Today. According to the survey, 37% of adults are concerned that employers are monitoring phone calls. Use the binomial distribution formula to calculate the probability that out of five adults, exactly three are concerned that employers are monitoring their phone calls. Select one: O a. 1.85 Ob. 0.799 Oc. 0.201 d. 3.15
About 69% of people who are murdered knew the person who committed the murder. Suppose that Detective Williams's case load currently has 49 unsolved murders. Use a nomal distribution approximation to the binomial distribution to find the following probabilities: a. What is the probability that at least 30 of the victims among Detective Williams's case files knew their murderer? b. What is the probability that between 30 and 39 of the victims knew their murderer?
Howard is 30% likely to be subjected to the Tax Bureau's audits due to his previous crinimal record. What is the probability that he will not be subjected to the random audit for at least 3 years?a. describe random variable x.b. what distribution does x follow? explainc. what is the probability that he will not be subjected to the random audit for at least 3 years?
In the 2013 Jerry’s Artarama art supplies catalog, there are 310 pages. Ten of the pages feature signature artists. Suppose we randomly sample 100 pages, and a page may be sampled more than once. Let X = the number of pages that feature signature artists. What is the probability distribution? Find the following probabilities: Binomial distribution with n=100, p = 10/310 i. the probability that four pages feature signature artists ii. the probability that at most two pages feature signature artists iii. the probability that more than six pages feature signature artists.

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