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: Twenty-six percent of couples who plan to marry this year are planning destination weddings. In a…

A: From the given information, 26% of couples who plan to marry this year are planning destination…

Q: If a seed is planted, it has a 80% chance of growing into a healthy plant. If 126 randomly selected…

A:

Q: P(x, y) 1 0.010 0.015 0.025 1. 0.020 0.030 0.050 0.050 0.075 0.125 3 0.060 0.090 0.150 4 0.040 0.060…

A:

Q: (a) The probability that the family selected has an annual income of less than $40,000 (b) The…

A: Here use given frequency distribution for answer the question

Q: Discount Admission Regular Admission TОTAL Purchases 24 72 96 a snack Purchases 36 108 144 no snack…

A: Given:

Q: The probability of event A, given that event B has occurred, can be found using Bayes’s Theorem. Use…

A: Given that, P(A) = 0.35 , P(A') = 0.65, P(B | A) = 0.1 andP(B | A') = 0.7

Q: The lifespan of a car battery is normally distributed with u = 5 years and o = 1.2 years. What is…

A: to find the probability using standard normal distribution.

Q: nce company prices its Tornado Insurance using the following assumptions: In any calendar year,…

A: This is the case of binomial, as the probability of a tornado is constant with two possible outcomes…

Q: A certain virus affects 0.5% of the population. A test used to detect the virus in a person is…

A:

Q: Q3: Each salesperson in a large department store chain is rated on his or her sales ability and…

A: Given data;       potential for advancement       Fair Good Excellent   Below Average 50 46…

Q: Assume that the monthly worldwide average number of airplane crashes of commercial airlines is 3.…

A: Solution

Q: A small hotel in a popular resort area has 25 rooms. The hotel manager estimates that 14% of all…

A: Given data:-     n=30  booking      25 rooms available     P not shows P=0.14 ∴Pshow P=1-0.14=0.86…

Q: . The probabilities that a market inspector will discover violations of the public health code in a…

A:

Q: A survey was done to see the relationship between eating out and going to a movie. A phone survey…

A: To find the probability that a person will go to a movie given that they did not eat out.

Q: In any calendar year the probability of a tornado is 0.02 The number of tornadoes in any calendar…

A: Given that  In any calendar year there can be at most one tornado In any calendar year the…

Q: During a promotional contest, a soft drink company places winning caps on one of every six bottles…

A: Given Data Probability of success,p = 0.1667 )

Q: The probability that it rains in London on a random day in fall is 0.4. A student walks to campus…

A: Probability is the branch of mathematics concerning numerical descriptions of how likely an event is…

Q: The probabilities that a customer will rent 0, 1, 2, 3, or 4 DVDs on a single visit to the rental…

A: Let X be the number of DVDs that the customer will rent on a single visit to the rental store. Then…

Q: 9. According to the latest Gallup Poll, 65% of American Teenagers purchase iPhones. Assuming this…

A:

Q: The probability that Mr. Adam comes across a red light is 0.45 at any intersection. What is the…

A:

Q: Suppose the probability of snow tomorrow is 0.1 while the probability of IU winning the basketball…

A: P(A and B) = P(both event A occurs and event B occurs)  If A and B are two INDEPENDENT events, then…

Q: The probability that a patient recovers from a rare blood disease isl - If 10 people are known 10 to…

A:

Q: In a state where cars have to be tested for emission of pollutants, 25% of all cars emit excessive…

A:

Q: A family decides to have children until it has three male children. Assuming P(male) = P(female) =…

A: A family decides to have children until it has three male children. Assuming P(male) = P(female) =…

Q: Patients arrive at a hospital accident and emergency department at random at a rate of 6 per hour.…

A: Given : rate (λ) = 6 per hour For 90 minuets period  λ=9  X follows Poisson distribution. Formula :…

Q: The probability that a regularly scheduled flight departs on time is P(D) = 0.83, the probability…

A: 5) Given information: P(D)=0.83 P(A)=0.82 P(DA)=0.78 a. The probability that a plane arrives on time…

Q: The number of storms that occur in the Mediterranean region between 20-30 March is equal to 3 on…

A:

Q: 17) Find the probability that when a gardener plants 20 seeds, she harvests 16 radishes given the…

A: n = 20 r = 16 p=0.7 q = 1-0.7 = 0.3 Distribution = Binomial

Q: ) Find the probability that a person has the virus given that they have tested positive. Round your…

A: Given,  0.4% population is infected 90% of times the person has virus tested positive(true positive)…

Q: In a hamster breeder’s experience, the number X of live pups in a litter of a female not over twelve…

A: The given probability distribution is: x 3 4 5 6 7 8 9 P(x) 0.04 0.10…

Q: A representative from the National Football League's Marketing Division randomly selects people on a…

A:

Q: B. A Grade 11 class has 45 students. The following records shows the typical number of students who…

A: The given table is:

Q: An insurance company prices its Tornado Insurance using the following assumptions: In any calendar…

A: From the provided information, In any calendar year the probability of a tornado is 0.07 that is p =…

Q: A C Total Male 10 8 7 25 Female 19 20 13 52 Total 29 28 20 77 If one student is chosen at random,…

A:

Q: if the probability of a student succeeding in probability is 0.6, the probability of his success in…

A:

Q: Suppose a math class contains 37 students. There are 16 females (six of whom speak Spanish) and 21…

A:

Q: Assume that the average number of phone calls coming at a small corporation's switchboard is 30 per…

A: Given :  The average number of phone calls coming at a small corporation's switchboard is 30 per…

Q: A radioactive source emits particles at an average rate of one every 12   seconds. Find the…

A: Given problem Given that   A radioactive source emits particles at an average rate of one every 12…

Q: According to a recent study, 1 in every 4 women has been a victim of domestic abuse at some point in…

A: It is a fact of statistics . It is widely used nowadays .

Q: A small hotel in a popular resort area has 25 rooms. The hotel manager estimates that 14% of all…

A: pno show=0.14∴pshow=1-0.14=0.86x=no.of customer shows uppx=X=cxn px qn-xbinomial distribution…

Q: a. According to a reputable health organization, a woman has low HDL (higher risk) if her HDL…

A:

Q: Let X denotes the number of patients who die at a certain hospital in a day. The following table…

A: Expected number of deaths per day = 0*0.3+1*0.25+2*0.25+2*0.25+3*0.15+4*0.05 = 1.4

Q: Suppose the probability of snow tomorrow is 0.3 while the probability of IU winning the basketball…

A:

Q: Find the following probabilities or percentages: (a) Probability that a viewer is aged 18–34. (Round…

A: Total number of viewers = 100 Number of viewers aged 18-34 = 62 Number of viewers prefer videos on a…

Q: Twelve percent of the population is left handed. Approximate the probability that there are at least…

A: According to the given information, we have Twelve percent of the population is left handed.  Sample…

Q: A workshop tows in an average of five damaged cars per week. Find the probability that exactly 20…

A:

Q: The probability that it rains in London on a random day in fall is 0.4. A student walks to campus…

A: Given that  The probability that it rains in London on a random day in fall is 0.4 P(Rain) = 0.40…

Q: A university reports that 80% of its students enrollthere as freshmen, while the rest transfer in…

A: G: the graduate student F: freshmen T: transfer student The probability of transfer student is…

Q: The probability that a regularly scheduled flight departs on time is P(D) = 0.83, the probability…

A: Given: PD=0.83PA=0.82PDA=0.78 a. The probability that a plane arrives on time given that it departed…

Q: Q2. If the lifetime X of a hearing aid battery has Weibull distribution with a = 0.1,B = 0.5. Find…

A:

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.