The​ three-year recidivism rate of parolees in a certain state is about 20​%; that​ is, 20​% of parolees end up back in prison within three years. Assume that whether one parolee returns to prison is independent of whether any of the others return. Complete parts a and b below.         Find the probability that exactly 6 out of 20 parolees will end up back in prison within three years.   The probability that exactly 6 out of 20 parolees will end up back in prison is nothing.

Q: The survival rate during a risky operation for patients with no other hope of survival is 82%. What…

A: From the provided information, Survival rate = 82% that is p = 0.82 Sample size (n) = 5 The process…

Q: This problem involves students who have taken Calculus in high school. Assume that 15 percent of…

A: Probability quantifies the chances of happening an event. The probability values always lie in the…

Q: According to a survey, 63% of murders committed last year were cleared by arrest or exceptional…

A:

Q: In any given year, a factory has a 20% probability of having a accident. About every how many hours…

A: The probability of having an accident is 20% for a given year.

Q: The survival rate during a risky operation for patients with no other hope of survival is 71%. What…

A: Given information- We have given a problem of the binomial distribution. Probability of survival, p…

Q: You take the Chunin exams today but your chances of passing depends on how the Hokage makes the…

A: Solution

Q: A car insurance policy costs P7000 per year from an insurance firm. The insurer shall pay P10,000…

A: Policy cost is P 7000.  Accident Pay Probability Minor Accident 10000 0.20 Big accident 50000…

Q: Canadians is chosen, find the probability that fewer than 3 respondents will support the seal hunt.

A:

Q: The probability of John going to the movies today is 0.7. The probability of Sam going to the movies…

A: Answer:- The probability of John going to the movies today is P(J) =  0.7               The…

Q: In any given year, a factory has a 10% probability of having a serious accident. About every how…

A: Determine for every many number of years might the factory expect to have an accident.   The every…

Q: Sam is an archer and hits targets with 70% accuracy. If shots are independent of each other, what is…

A: Given Sam is an archer and hits targets with 70% accuracy and shots are independent of each other.…

Q: In a certain city, a hospital receives an average of 9.5 emergency calls per day. The probability…

A: Answer The favorable cases [x] = 6The average = 9.5

Q: In one town, 52% of all voters are Republicans. If two voters are randomly selected for a survey,…

A:

Q: In some situations, one event effects or alters subsequent events. In other situations, events are…

A: Given that  In an experiment, you are comparing the percentages of right-handed batter to…

Q: A survey on campus revealed that 61% of the students felt that a new attendance policy was unfair.…

A: The complement probability formula is, PA=1-PA A survey on campus revealed that 61% of the students…

Q: Contractors know that on average 5% of all nails come defective from the factory. Assuming an…

A: We have to find out given probabiity...

Q: Suppose you manage the demand for a towing company in Little Rock. On a usual day your company gets…

A:

Q: In a city, 60% of the residents live in houses and 40% of the residents live in apartments. Of the…

A: Let A denote the event residents live in houses Let B denote the event that residents live in…

Q: A survey found that 32% of book buyers are younger than 40 years old. If 10 book buyers are…

A: It is given that n=10 and p=0.32.

Q: robability of a mild accident is 0.014. et X be the insurance company's net gain or loss on the…

A: For a serious accident, the policy will pay $279,000.For mild accident, the policy will pay…

Q: n a certain California city, projections for the next year are that there is a 20% chance that…

A: x P(x) x*P(x) +200 0.20 40 +300 0.50 150 -800 0.30 -240

Q: In a particular city, 63% of the adults own their home and 37% rent. A sample of 20 adults is taken.…

A: Given,probability of adults own their home(p)=63%=0.63probability of adults on…

Q: In a population of 10,000, there are 5000 nonsmokers, 2500 smokers of one pack or less per day, and…

A: The given Information can be depicted as follows:       During any month       Begin smoking 1…

Q: In a population of 10,000, there are 5000 nonsmokers, 2500 smokers of one pack or less per day, and…

A: Given,  Total population : 10000 Nonsmokers : 5000 Smokers of one pack or less per day : 2500…

Q: The frequency of twin births has been increasing in recent years so that in 2022 about 4% of all…

A: From given in 2022 about 4% of all births were twins. and The probability of a birth being that of…

2-Proportion Test

In a 2-proportion test, two separate proportions are measured at the same time, and their similarity is evaluated. It is also known as a 2-proportion z-test, and a comparison of two different proportions is done in this method.