6) Criminal Justice: Parole USA Today reports that about 25% of all prison parolees become repeat offenders. Alice is a social worker whose job is to counsel people on parole. Let us say success means a person does not become a repeat offender. Alice has been given a group of four parolees. a) Find the probability of more than 3 successes.

Q: 2–41. A recent survey conducted by Towers Perrin and published in the Financial Times showed that…

A: Obtain the probability that an organization selected at random will have at least one of the three…

Q: There are 2 first grade children, 4 second grade children, and 7 third grade children in a room.…

A: Given : There are 2 first grade children, 4 second grade children, and 7 third grade children in a…

Q: 40% of the managers in an international company have traveled abroad, 50% of them can speak foreign…

A: Let event T:Manager travelled abroad event F:Manager can speak foreign language. PT=0.4 therefore…

Q: 60 percent read newspaper A, 40 percent read newspaper B and 30 percent read newspaper C, 20 percent…

A: Let reading three newspapers be events, then   Probability of reading newspaper A = P(A)=0.60…

Q: ble round robin Basketball games composed of 8 teams, team A was able to win over 3 teams.  In the…

A: Given: Total games = 8 Total games that Team was winning  = 3

Q: If a randomly selected female student abstains from​ alcohol, what is the probability she attends a…

A: Given info: 20.4% of women attending all-women colleges abstained from alcohol, compared to 17.7% of…

Q: The Tauroto region contains 31 different species of IceCream-type small monsters.  Each capture of…

A: Given information 31 different species of ice-cream

Q: A patient taking an antiviral medication recovers from a respiratory disease with 35% probability.…

A: The probability is p=0.35 and the value of n is 18. Therefore m=np=0.35×18=6.3 Therefore the…

Q: The guidance department has reported that of the senior class, 2.3% are members of key club, K, 8.6%…

A: Given that      P(K)  = 2.3%  = 2.3/100     P(P)    = 8.6%  = 8.6/100   P(K and P)  = 1.9%  =…

Q: 6. A jar contains 10 blue marbles and 11 red marbles. Two marbles are drawn without replacement.…

A: Jar contain 10 blue marble and 11 red marble, Therefore jar contain total 21 marble, Out of 21…

Q: A medical clinic is randomly selecting three staff members to attend a conference. The clinic…

A: A medical clinic is randomly selecting three staff members to attend a conference. The clinic…

Q: The problem claims that 67% of the rural population has access to the power grid. If a sample of 10…

A: To find the probability that 8 can actually connect to the power grid of rural families.

Q: A cell phone company found that 75% of all customers want text messaging on their phones, 80% want…

A: Given: Let's say that the total population is 100. Number of people want messaging is 75 Number of…

Q: four sections of economics are taught during the day and two sections are taught at night. 90…

A: Let E1 denote denote the sections taught during day  and E2 denote the sections taught at night.…

Q: 3. A risk-averse individual is offered a choice between a gamble that pays P1000 with a probability…

A: Expected value is the measure that explain the average value. It is calculated by the combined value…

Q: if six different customers a, b, c, d, e and f arrive for service at random order, what is the…

A:

Q: In exercises 21-14, assume that when adults with smartphones are randomly selected, 54% use them in…

A: Define the random variable X as the number of adults who use their smartphone in meetings or…

Q: A telephone survey measured the percentage of students in ABC town who watch channels NBX, FIX, MMA,…

A:

Q: This exercise illustrates that poor quality can affect schedules and costs. A manufacturing process…

A: Concepts and reason A binomial experiment is a discrete probability experiment that satisfies the…

Q: As a promotional offer, a newly opened movie theatre is awarding 18% of their new patrons with a…

A: Out of all the patrons, only 18% are complimentary dinner and 82% are given free drink Out of all…

Q: A committee of 5 members is to be chosen from 9 female students and 6 male students. How many ways…

A: It is given that Total students = 9+6 = 15 Number of committee members = 5 Note : Since you have…

Q: This exercise illustrates that poor quality can affect schedules and costs. A manufacturing process…

A: Let X be the random variable that represents the number of defective components X has a binomial…

Q: 8. A resort manager is choosing a committee of four people to discuss employment issues. She will…

A: Given Information:  Number of housekeepers = 8  Number of desk clerks = 3  Number of maintenance…

Q: Two-fifths of the students in a dorm are Business majors and three-fifths are non-Business majors.…

A: P(B.M) = Two-fifths of the students in a dorm are Business majors = 25=0.4 P(NBM)= three-fifths are…

Q: 1. Study of consumer buying habits revealed that 30% of consumers only shop in retail brick and…

A:

Q: A study reports that 53% of Americans support increased funding for public schools. If 3 Americans…

A: We have to find out the binomial distribution probabilities.

Q: A telephone survey measured the percentage of students in ABC town who watch channels NBX, FIX, MMA,…

A: Given: P (NBX) = 0.35 P (FIX) = 0.40 P (MMA) = 0.10 P (TSA) = 0.15 P(NBX) is the probability of…

Q: 2. Adrian has 5 keys on a key chain and one of the keys is used to unlock his office door. If Adrian…

A: 2. Given: Adrian has 5 keys on a key chain and one of the keys is used to unlock his office door.…

Q: The guidance department has reported that of the senior class, 2.3% are members of Key Club, K, 8.6%…

A: P (P ∩ K) = 1.9 % P (P) = 8.6 % P (K) = 2.3 %

Q: 3. A shopping website has a free section and a members-only section. When entering the members-only…

A:

Q: A Harris Interactive survey for Inter- Continental Hotels & Resorts asked respondents,       “When…

A: a) 23% of the respondents stick with their tour group  So, p = 0.23 size of the sample, n=6…

Q: The company has two production facilities, one in ISTANBUL and one in IZMIR. The ISTANBUL plant…

A: Let 'A' be the event that the company production facilities from 'ISTANBUL ' 'B' be the event that…

Q: An internet job recruitment company, Companyl, claims on their website that their company doubles…

A:

Q: 3. A traffic control engineer reports that 75% of the vehicles passing through a checkpoint are from…

A: 3)  -probablity is 3/7

Q: 6. A pair of fair dice is rolled. What is the probability of getting two different numbers on the…

A: Obtain the probability of getting two different numbers on two dice. The probability of getting two…

Q: A group of students and faculty of UO are polled about whether or not UO should switch to a 4 day…

A: Given data,   In Favour Not in Favour Not Sure Total Students 500 220 80 800 Faculty 200 300…

Q: 4. A pharmaceutical company knows that approximately 5% of its birth- control pills have an…

A:

Q: 4. The basketball team at North Snowshoe High is in trouble. Two of their players have just fouled…

A: 4. The total number of ways choosing two of the four to go into the game is 42. The number of ways…

Q: 4) The Tauroto region contains 31 different species of IceCream-type small monsters. Each capture of…

A: Given, The tauroto region contains 31 different species of Icecream-type small monsters Each capture…

Q: 3. A constructor of airport terminals has a 0.40 chance of winning a contract for the construction…

A: Given that P(M) = 0.4,P(I )=0.3,P(both ) =0.1 P(M or I ) =?

Q: 19 involving the rental cars with navigation systems. Assume that the car lot contains 20 percent…

A: Given information- P (Corvettes) = 0.20 P (BMW) = 0.35 P (Jaguars) = 0.45 P (Navigation systems l…

Q: In a hospital, there are 11 male patients in ICU, 7 female patients in ICU, 5 male patients in…

A: Given that,  MALE Patients in ICU =11 MALE Patients in Cardiology= 5 MALE Patients in…

Q: Matakuja Bank is concerned with the basic education skills of its office attendants and decided to…

A: From the given information, P(signed up for the office operations training)=0.40 P(signed up for the…

Q: 3) If my Halloween candy bag contains 4 Reese's, 6 bags of Skittles, and 30 other pieces of candy,…

A: We have to find given probability.

Q: A consumer organization estimates that over a 1-year period 15% of cars will need to be repaired…

A: Let r0 denotes no repair required. Let r1 denotes repairing is needed for once. Let r2 denotes…

Q: A survey of top executives revealed that 31% of them regularly read Time magazine, 19% read…

A: Givenpercent of executives read Time magazine=31%P(Time magazine)=0.31Perccent of executives read…

Q: Calculate the probability that a randomly chosen policy holder from this portfolio will make a claim…

A: Let us define some events A : a policy holder is from group A. B : a policy holder is from group B.…

Q: 9. Suppose you draw two tennis balls from a bag containing 3 white balls, 9 green balls, 2 yellow…

A: There are total 21 balls are present.

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.