It is observed that 30% of the students in a class are swimmers. If 3 students are selected at random from this class, then the chance that only one of them is a swimmer is (A) 0.559 (B) 0.414 (C) 0.441 (D) 0.9

Q: At one private college, 34% of students are business majors. Suppose that 260 students are randomly…

A: The probability that the proportion of business students in the sample differs from the population…

Q: A psychology class consists of 36 males and 48 females. If the professor selects names from the…

A: Given, A psychology class consist of 36 males and 48 females. and professor select names from the…

Q: In a recent survey, 18 people preferred milk, 29 people preferred coffee, and 13 people preferred…

A: Probability of an event is computed by taking the ratio of number of favourable outcomes to total…

Q: In a recent year, 13% of businesses have eliminated jobs. If 6 businesses are randomly sampled, what…

A: Let us denote X=the number of businesses that have eliminated jobs. n=sample size=6 p=probability of…

Q: A psychology class consists of 28 males and 52 females. if the professor selectes names from the…

A: (a) Obtain the probability that the first student selected will be a female. The probability that…

Q: It has been estimated that 21% of Americans are smokers. If five American adults are chosen at…

A: From the provided information, It has been estimated that 21% of Americans are smokers that is p =…

Q: 5 of 8 students are from middle Georgia state college. What is the probability that both of the…

A:

Q: What is the probability of randomly selecting a 3-children family with two girls?

A: We will first list all possible outcomes in the sample space, then we will use following definition…

Q: What is the probability of randomly selecting a cat?

A: here given Table    Cat Dog Total student 11 29 40 professor  20 17 37   31 46 77 use…

Q: In a large population, 52 % of the people have been vaccinated. If 5 people are randomly selected,…

A: Let p be the proportion of vaccinated people. Given that p = 0.52 Let X denotes the number of…

Q: Eight percent of Americans have a master’s degree. If five Americans are selected at random, what is…

A:

Q: In a statistics class, there are 18 male and 10 female students; 6 of the females are from the…

A:

Q: A sample of automobile dealerships found that 19 % of automobiles sold are silver. If two cars are…

A: Given Information: 0.19% of the automobiles sold are silver. Two cars are selected randomly.

Q: A recent poll found that 30% of those surveyed are worried about aggressive drivers on the road. If…

A:

Q: A psychology class consists of 28 males and 52 females. If the professor selects names from the…

A: a)Let  denote the total number of females in the class.And  denote the total number of students in…

Q: Suppose a recent study determined that 29% of Americans favorite ice cream flavor is If a sample of…

A:

Q: In Canada, 63% of households speak English as their primary language, and 23% speak French as their…

A:

Q: In a Business Statistics class, there are 15 girls and 11 boys. On a test 2, 9 girls and 6 boys made…

A: Given: In a business statistics class there are 15 girls and 11 boys on a test 2, 9 girls, and 6…

Q: What is the probability of selecting one person at random who is a smoker?

A: From the provided information, Total person = 100 Number of persons who smoke = 54

Q: A drug den uses a traveler to deliver drugs without being apprehended by the customs. The traveler…

A:

Q: A poll is given, showing 20% are in favor of a new building project. If 8 people are chosen at…

A:

Q: Suppose that 56% of students in a college have a smart phone. If you select three students at…

A: Solution: It is given that 56% of students in a college have a smart phone.  Thus, probability that…

Q: A psychology class consist of 28 males and 52 females. If the professor selects names from the…

A: It is given that a psychology class consist of 28 males and 52 females. Thus,  Total number of…

Q: A poll is given, showing 55% are in favor of a new building project. If 5 people are chosen at…

A: Given Information: Proportion p=0.55 Sample size n=5 The objective is to find the probability that…

Q: Assume that in a group of 12 individuals, seven prefer football and five prefer cricket. A random…

A: Given : n = individuals = 12 football = 7 cricket = 5 a) Exactly two prefer football : =C27×C15C312…

Q: In a sample of 50 employees, 32 were females, 22 were smokers, and 15 were males and smokers. If an…

A: Given that  Sample size (n) = 50 Number of females (F)  = 32 Number of males (M) = 50 -32 = 18…

Q: It has been estimated that 21% of Americans are smokers. If four American adults are chosen at…

A: Given that, proportion, p= 21%  p= 0.21 So q= 1-p= 1-0.21 = 0.79 And sample size is n= 4 So X~…

Q: A psychology class consists pf 28 males and 52 females. If the professor selects names from the…

A: Number of males in the class = 28 Number of females in the class = 52 Total number of students =…

Q: accounting professor claims that no more than one quarter of undergraduate business students will…

A:

Q: In a large population, 53% of the people have been vaccinated. If 5 of the people are randomly…

A: It is given that n = 5 and p =0.53.

Q: A poll is given, showing 55% are in favor of a new building project. If 8 people are chosen at…

A: Given,n=8p=0.55X=no.of people favor the new building projectX~Binomial (n=8 , p=0.55)P(X=x)=nx px…

Q: A poll is given, showing 60% are in favor of a new building project. If 8 people are chosen at…

A: Given p =0.6 and n=3   P(X>3)=1-P(X<3)               =1-Cxn px(1-p)n-x…

Q: In a large population, 40 % of the people have been vaccinated. If 4 people are randomly selected,…

A:

Q: A colony of laboratory rats contain 16 white rats and 9 spotted rats.What is the probability of…

A: Introduction:Probability of an event is the number of outcomes favorable to the event, divided by…

Q: In a business statistics class of 30 students, 17 are boys and 13 are girls. On a unit test, 4 boys…

A: Given: The business statistics contains the 30 students that is present in the class. It mostly…

Q: A poll is given, showing 80% are in favor of a new building project. If 9 people are chosen at…

A:

Q: What is the probability that a randomly selected competitor reacted in 0.3 to 0.7 seconds or was not…

A: Since , the table given below ,   Less than 0.3 seconds 0.3 to 0.7 seconds Total Male 14 7 21…

Q: large cable company reports that 42% of its customers subscribe to its Internet service, 32%…

A: Given large cable company reports that 42% of its customers subscribe to its Internet service, 32%…

Q: Suppose that 75% of all college students use TikTok. If 15 are selected at random: a)What is the…

A: Given :  Let X : No. of college students use TikTok  p = 0.75  n = 15

Q: A sample of automobile dealerships found that 19 % of automobiles sold are silver. If two cars are…

A:

Q: f 2 percent of the rifles in an arsenal are defective, what is the probability that a random sample…

A: Given that  2 percent of the rifles in an arsenal are defective . P = 2% = 0.02 Sample size (n) =…

Q: In a recent poll of voters, 20% were displeased with both candidates. If 3 people were picked at…

A: Let x is random variable where people like candidates, and n is total number of trial.Given:20%…

Q: What is the probability of randomly picking a 11 or 5 in one draw from a deck of ordinary playing…

A:

Q: In a small private school, 5 students are randomly selected from 14 available students. What is the…

A: Given that, 5 students are randomly selected from 14 available students.Here, we can use binomial…

Q: Approximately half of the customers who shop at a particular grocery store are loyalty club members.…

A: Approximately half of the customers who shop at a particular grocery store are loyalty club members.…

Q: In a management trainee program, 80 percent of the trainees are female, 20 percent male. Ninety…

A: It is important in statistics . It is widely used nowadays .

Q: A car insurance company has determined that 9% of all drivers were involved in a car accident last…

A:

Q: In a company that makes sports bikes, 90% of the bikes pass final inspection and 10% fail and need…

A:

Q: In a city of 180,000 people there are 20,000 legal immigrants from Latin America. What is the…

A: Given: The total number of people in a city are N=1,80,000. The number of legal immigrants from…

Q: In a small private​ school, 3 students are randomly selected from 18 available students. What is the…

A: Given information 3 Students are selected from 18 students

Contingency Table

A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.

Binomial Distribution

Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.