45% of shoppers at a supermarket indicate that they were dissatisfied with the customer service received at the supermarket. 20 shoppers were randomly and independently sampled. what is the probability that 2 randomly selected shoppers are dissatisfied with the customer service?

Q: A geologist has collected 10 specimens of basaltic rock and 10 specimens of granite. The geologist…

A:

Q: 10. At John F. Kennedy Elementary School, 81% of students buy their lunch. In a randomly selected…

A: We have given that p = 0.81 n = 22 X ~Binomial(n, p) X ~ Binomial (22, 0.81)The PMF of the Binomial…

Q: In a company survey of 1000 skiers and bikers it is found that 80% like skiing and 60% like biking.…

A:

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: In a recent study, 29% of people surveyed indicate chocolate was their favorite flavor of ice cream.…

A:

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

A:

Q: Migraine medication was administered to patients in that 5% experienced weight gain as a side…

A:

Q: State Farm Insurance studies show that in Colorado, 60% of the auto insurance claims submitted for…

A: (b) The random variable X is defined as the number of claims are made by males under age 25 which…

Q: Thirty-five percent of the people who own cellphones use their phones to send and receive text…

A: Given,n=3p=0.35Let X=no.of people use their phones for textingX~Binomial(n=3 , p=0.35)P(X=x)=3x…

Q: What is the probability of selecting a female respondent, given that the preferred supermarket is…

A: From the table, the number of respondents who are female and preferred Pick n Pay is 60. The number…

Q: In a recent survey of a random sample of 437 California residents, 129 said they visited a state…

A: We want to find out the correct answer for given question

Q: A department store has determined that 36% of all their sales are credit sales. A random sample of…

A: Given: p=0.36 n=65

Q: About 8% of males are colorblind. A researcher needs three colorblind men for an experiment and…

A:

Q: Thirty percent of the students in Unix College is in favour of a ban on drinking in the dormitories.…

A: Let us assume that X= number of students who favor ban  X follows a binomial distribution with…

Q: A telephone survey conducted by the Maritz Marketing Research company found that 43% of Americans…

A: Comment: As per the our company guideline we are supposed to answer only three subparts. Kindly…

Q: What is the probability of randomly selecting a respondent who is male and prefers Checkers?

A: The probability of selecting a respondent who is male and prefers Checkers is obtained below: Total…

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

A: Givenp=0.26n=12Let "x" be the couple having destination…

Q: #02.  The top web browser in 2015 was Chrome with 51.74% of the market. In a random sample of 250…

A: Population proportion = 0.5174 Sample proportion = 110/250 = 0.44

Q: A fortune 500 company asked its 1520 employee this question: “Did the work condition too…

A: Given information can be shown in the table below:   Yes No Total Males 134 651 785 Females…

Q: What is the probability that a randomly selected friend tasted peaches and preferred non- organic?

A: The data is given by   Organic Non-organic Total Apples 4 3 7 Peaches 4 1 5 Toral 8 4 12

Q: In the United States, 75 percent of adults wear glasses or contact lenses. A random sample of 10…

A: A random variable X, is said to follow binomial distribution if the probability mass function of X…

Q: A hospital finds that 25% of its accounts are at least 1 month in arrears. A random sample of 450…

A: Let us denote: X=the number of accounts that were at least 1 month in arrearsGiven that n=sample…

Q: 47 percent of students who made a resolution of passing college with high GPA achieved their…

A: Given that, n =155, p =0.47 The values of mean and standard deviation are,

Q: A salesperson found that there was a 1% chance of a sale from her phone solicitations. Find the…

A:

Q: Wi-Fi Based on a poll conducted through the e-edition of  USA Today , 67% of Internet users are more…

A: In this context, the probability that the internet users are more careful about the personal…

Q: One out of four cars at a dealearship is white. If they sell twenty cars at random, what is the…

A: From the given information, one out four cars is white. That is, the probability of white car is…

Q: hilitu of cuccers n035 and n=5 trials is conducted, What is the probability that the experiment…

A: It is given that n=5 and p=0.35.

Q: In a recent​ survey, it was found that the median income of families in country A was ​$58,000. What…

A: In a recent​ survey, it was found that the median income of families in country A was ​$58,000.

Q: The Delaware tourism board selected a simple random sample of 50 full-service restaurants located…

A: Given information: The population mean and population standard deviation are 99.2 and 20.5,…

Q: On hot, sunny, summer days, Jane rents inner tubes by the river that runs through her town. Based on…

A: Given,             X      25    50    75   100  Total   P(x)    0.27   0.44   0.25   0.08…

Q: According to a national​ study, 32​% of taxpayers used computer software to do their taxes for a…

A: Solution: We are given:32​% of taxpayers used computer software to do their taxes for a certain tax…

Q: A college recently reported that 52.6% of its student body had concerns about the increasing cost of…

A: Given that the percentage of student body had concerns about he increasing cost of textbooks is…

Q: Privacy is a concern for many users of the Internet. One survey showed that 59% of Internet users…

A: Let p be the probability of concerned about the confidentiality of their email Based on this…

Q: Fifty-three percent of all persons in the U.S. population have at least some college education.…

A: Given : Fifty-three percent of all persons in the U.S. population have at least some college…

Q: c. What is the probability that in a random sample of 2, at least one has been abroad?

A: (C) Let X be the random variable from binomial distribution with probability of people have been…

Q: In a certain town, 62% of the residents enjoy riding roller coasters. Alfred takes a sample of 75…

A: Given Data: Using binomial to normal approximation Mean=n*p=0.62*75=46.5 Standard deviation=4.2036…

Q: Fifty-three percent of U.S. households have a personal computer. In a Random sample of 250…

A: It is an important part of statistics. It is widely used.

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: In Norway, approximately 22% of vehicles are electric vehicles. Which is closest to the probability…

A:

Q: What is the probability that a randomly selected female student abstains from​ alcohol?

A:

Q: Sixty percent of clowns aren’t funny.   If you randomly encounter three different clowns, what is…

A: Multiplication rule for independent events:If two events A and B are independent then the…

Q: Ashley conducted an experiment to see which one of her friends has the best sense of smell. She…

A:

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: Forty-five percent (45%) of shoppers at Supermarket Xtra indicate that they were dissatisfied with…

A: let x be the nonof customer dissatisfied with probability p=0.45  and sample size n=20 follow…

Q: Sixty-three percent of U.S. households have a personal computer. In a random sample of 400…

A: Let p be the proportion of households have a personal computer. Given that p = 0.63 Let X denote the…

Q: 2a. What is the probability a salesperson selected at random will have a fair potential for…

A: Probability: The formula for probability of an event E is as follows: P(E) = (number of favorable…

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

A: