According to a​ survey,61​%of murders committed last year were cleared by arrest or exceptional means. Fifty murders committed last year are randomly​ selected, and the number cleared by arrest or exceptional means is recorded.   ​(a) Find the probability that exactly 38 of the murders were cleared. ​(b) Find the probability that between 35 and 37 of the​ murders, inclusive, were cleared. ​(c) Would it be unusual if fewer than 18 of the murders were​ cleared? Why or why​ not?

Q: Assume that 15​% of people are​ left-handed. Suppose 12 people are selected at random. What's the…

A: Solution

Q: (4) Of 50 fitness buffs, 25 like bicycling, 35 like jogging, and 15 like bicycling and jogging. a.…

A:

Q: 33% of all college students major in STEM (Science, Technology, Engineering, and Math). If 45…

A: Note: Hey, since there are multiple subparts are posted, we will answer first three subparts for…

Q: Nine new employees, two of whom are married to each other, are to be assigned nine desks that are…

A:

Q: Assuming that the population is half male and half female, what is the probability that a random…

A: From the provided information,The population is half male and half female, probability of male (p) =…

Q: by (a) fewer than 4 hurricanes; (b) anywhere from 6 to 8 hurricanes.

A: Given : mean , μ= λ = 6

Q: A nationwide survey of seniors by the University of Michigan reveals that almost 30.0% disapprove of…

A:

Q: It is commonly believed that 10% of Americans are left-handed. Find the probability that in a random…

A: Givenpercentage of Americans left handed = 10%Let proportion of Americans left handed be p = 0.10The…

Q: In a certain​ country, the true probability of a baby being a girl is 0.486 . Among the next four…

A: From the provided information,Probability of a baby being a girl is 0.486.n = 4

Q: In a town of 5000 people, 1000 are over 60 years old and 2000 are female. It is known that 40% of…

A: Given: Total People in town=5000Number of people over 60=1000Number of females=2000Number of female…

Q: A survey reveals that 80% of the eligible people in a certain county vote during a county election.…

A: Here, n = 70 and p = 0.80.

Q: According to a​ survey, 61​% of murders committed last year were cleared by arrest or exceptional…

A: Here we have, number of murders(n)=50

Q: ) Suppose the percentage of those completing a master's degree is 42%. In a random sample of 9…

A: n=sample size=9, p=42%

Q: Suppose that 24% of people own dogs. If you pick two people at random, what is the probability that…

A: Given 24% of people own dogs

Q: What probability should be found? A. 1-P (5 female undergraduates take on debt) В. 1+ P (5 female…

A: p = 0.109n = 20

Q: insurance company determines that the probability a person files a claim in the next year is 8%. If…

A: Given data,probability a person files a claim in the next year is 8%p=8%=0.08If n=10what is the…

Q: 1. A survey found that one out of four Filipino says he or she has visited a dentist in any given…

A: Binomial Distribution:             It is to obtain the probability of the X successes in N trials,…

Q: Suppose that 30% of all college freshmen gain weight. A sample of 20 selected randomly. What is the…

A: The random variable X is the college freshmen gain weight which follows binomial distribution with…

Q: In a certain​ country, the true probability of a baby being a boy is 0.515. Among the next nine…

A: The true probability of a baby being a boy is 0.515.   Suppose, X be the number of girls born out of…

Q: Suppose that 45% of all babies born in particular hospitals are girls. If 7 babies born in the…

A: Givenn=7p=0.45x=no.of baby girls

Q: In a certain​ country, the true probability of a baby being a boy is 0.536. Among the next eight…

A: Ans: Let X be a random variable showing the number of girls among 8 newborns. The probability of a…

Q: 3) Suppose that among employed women, 25% have never been married. Suppose we randomly sample women…

A: Given that, among employed women, 25% have never been married p=0.25 We have to find probability…

Q: An experiment consists of dealing 4 cards from a standard 52-card deck. What is the probability of…

A:

Q: n a certain​ country, the true probability of a baby being a girl is 0.476. Among the next four…

A: Given that  The true probability of a baby being a girl is 0.476 The true probability of a baby…

Q: Assuming that the population is half male and half female, what is the probability that a random…

A: Given :Assuming that the population is half male and half female So , the population proportion of…

Q: Ten percent of people in Western countries consider themselves lucky. If 3 people are selected at…

A: Given, It is an example of binomial distribution with parameters n = 3,p =0.1    A probability mass…

Q: In a sample of ten men, it is found that six are physically fit. If four men are randomly selected…

A: General formula of probability is,  Probability = Number of favorable outcomes Total outcomes

Q: A bag contains 46 U.S. quarters and four Canadian quarters. (The coins are identical in size.) If…

A: Given that the bag contains 46 U.S. quarters and 4 Canadian quarters. Total (46+4)=50 coins in the…

Q: the population is half male and half female, what is the probability that a random group of 11…

A:

Q: If 60% of all women are employed outside the home, find the probability that in a sample of 20…

A: Given,         n=20         P= 0.60         q=1-p=1-0.60=0.40       PX=x=nCx Px1-Pn-1;…

Q: Approximately 20% of U.S. workers are afraid that they will never be able to retire. Suppose 10…

A: According to the provided information, 20% of U.S. workers are afraid that they will never be able…

Q: A group of people were asked if they had run a red light in the last year. 376 responded "yes", and…

A: From the provided information, Total respondents (n) = 376 + 228 = 604 The total respondents who…