It is estimated that one third of the general population has blood type A+. A sample of eight people is selected at random (Round your answers to four decimal places.) (a) What is the probability that exactly two of them have blood type A+? (b) What is the probability that at most two of them have blood type A+?

Q: What is the probability that a roulette ball will come to rest on an even number other than 0 and…

A: We want to find the probability  P(even number) Probability of each outcome=1/38

Q: In a certain country, the true probability of a baby being a girl is 0.469. Among the next four…

A:

Q: Suppose that the New England Colonials baseball team is equally likely to win a game as not to win…

A: Given that the New England Colonials baseball team is equally likely to win a game as not to win it.…

Q: One interpretation of a baseball player's batting average is as the empirical probability of getting…

A: Given Data: Let X represent the random variable p=0.291 n=4   X~ Binomial(4, 0.291)

Q: A new surgery is successful 80 percent of the time. If the results of 9 such surgeries are randomly…

A: P =Probability of successful surgery and x=no of successful surgerys.  given, P=0.08              n…

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A: The percentage of of the successful surgeries is 80%. 7 surgeries are randomly selected. Let X be…

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A:

Q: Suppose that the New England Colonials baseball team is equally likely to win a game as not to win…

A: Binomial distribution: The binomial distribution gives the probability of number of successes out of…

Q: In a batch of 1960 calculators, there are, on average, 10 defective ones. If a random sample of 147…

A: We have given that,  Let X be the number of defective units from binomial distribution and sample…

Q: A nationwide survey of 17,000 seniors by the University of Michigan reveals that almost 70%…

A: Given p=0.7 n=18

Q: Suppose the probablility of a part functioning correctly in a copy machie is 0.98. If the machine…

A:

Q: he manager of Toy World has decided to accept a shipment of electronic games if none of a random…

A: This problem can be solved using the binomial distribution formula.

Q: A machine that manufactures automobile parts produces defective parts 15% of the time. If 10 parts…

A: Given : P = 0.15 n = 10

Q: A medical researcher estimates that 0.00004 of the population has a rare blood disorder. If the…

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Q: The manager of Toy World has decided to accept a shipment of electronic games if none of a random…

A: Given, (a) P(X=0), n=20, p=0.14 now, the probability that he will accept the shipment if 14% of the…

Q: A corporation receives 120 applications for positions from recent college graduates in business.…

A: Given: p=0.4 n=120

Q: Suppose that the New England Colonials baseball team is equally likely to win a game as not to win…

A: Given that the New England Colonials baseball team is equally likely to win a game as not to win it.…

Q: A four-bulbed flask contains three particles. What is the probability, to three significant figures,…

A: In theoretical distribution, the binomial distribution is the discrete probability distribution.…

Q: A researcher believes that 7% of female smoke cigarets if the researchers correct what is…

A: Calculation:Denote π as the true population proportion of female smokers. Hence, π = 0.07.Denote p…

Q: According to a recent study, 9.3% of high school dropouts are 16- to 17-year-olds. In addition, 6.3%…

A:

Q: A political pollster is conducting an analysis of sample results in order to make predictions on…

A: Hi, we are supposed to answer three subparts at a time. Therefore, I am answering the first three…

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A: Given n=10 Let X be the number of players test positive and fail the test.

Q: According to a recent study, 9.1% of high school dropouts are 16- to 17-year-olds. In addition, 6.3%…

A: We have given that  A=High  B=White  P(A)=9.1%=0.091 P(A and B)=6.3%=0.063 Find P(B/A)

Q: The probability of a randomly selected adult in one country being infected with a certain virus is…

A:

Q: It is a well-established fact that 40% of people are scared of squirrels. If we take a SRS of 50…

A:

Q: According to a recent study, 8.9% of high school dropouts are 16- to 17-year-olds. In addition, 6.4%…

A: Let A is the event that dropout are 16 to 17 years old. And  B is the event that dropout are…

Q: Five percent of all credit card holders eventually become delinquent. The probability, rounded to…

A: Given, p = 5% = 0.05 q = 1 - p = 1 - 0.05 = 0.95 n = 19

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A: Let X be the number of persons dissatisfied. The sample size is n=25. The proportion of customers…

Q: There are 84 passengers on an airline. 32 are traveling first-class. 30 are males. 52 are either…

A:

Q: A survey of all medium- and large-sized corporations showed that 69% of them offer retirement plans…

A: From the provided information, A survey of all medium- and large-sized corporations showed that 69%…

Q: A new surgery is successful 80% of the time. If the results of 8 such surgeries are randomly…

A:

Q: According to a safety engineer, barely 40% of all workers wear safety helmets when eating lunch at…

A:

Q: A Food Marketing Institute found that 30% of households spend more than $125 a week on groceries.…

A:

Q: Suppose 90% of adult American smokers started smoking before age 21, if a random sample of of 15…

A: (1)   Obtain the probability that exactly 10 Started smoking before age 21.   The probability that…

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A: It is given that the winning of a game is equally likely. Let the variable X be the number of games…

Q: new surgery is successful 80% of the time. If the results of 8 such surgeries are randomly sampled,…

A: Formula : Binomial distribution is given by

Q: According to a recent​ study, 9.3​% of high school dropouts are​ 16- to​ 17-year-olds. In​ addition,…

A:

Q: A machine that manufactures automobile parts produces defective parts 15% of the time. If 6 parts…

A:

Q: A survey of all medium- and large-sized corporations showed that 69% of them offer retirement plans…

A: Given: p=0.69

Q: HELP

A: It is given that percentage of males are color-blind is 7%.The percentage of females are color-blind…

Q: A survey of all medium- and large-sized corporations showed that 65% of them offer retirement plans…

A: The normal distribution is the most useful theoretical distribution for continuous variables.…

Q: The probability of an adult in Australia having hazel colored eyes is 20%. If a simp random sample…

A: Given information: The probability of an adult in Australia having hazel colored eye is 20%. The…

Q: in a large population 68% of the people have been vaccinated,if 4 people were selected, what is the…

A:

Q: An engineering school reports that 51% of its students were male (M), 33% of Type number- its…

A: P(M)=0.51 P(A)= 0.33 P(M and A)= 0.24 The general addition rule of probability is, P(M or A) = P(M)…

Q: A flashlight has 41 batteries, 5 of which are defective. If 3 are selected at random without…

A: Obtain the probability that all are non-defective. The probability that all are non-defective is…

Q: A machine that manufactures automobile parts produces defective parts 13% of the time. If 8 parts…

A:

Q: Suppose approximately 75% of all marketing personnel are extroverts, whereas about 55% of all…

A: Given n=15 p=0.75 q=1-p   =1-0.75   =0.75

Q: A new surgery is successful 85% of the time. If the results of 7 such surgeries are randomly…

A: It is given that n is 7 and the probability of success p is 0.85.

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.