A survey showed that a majority of Americans plan on doing their holiday shopping online because they don’t want to spend money on gas driving from store to store. Suppose we have a group of 10 shoppers; 7 prefer to do their holiday shopping online and 3 prefer to do their holiday shopping in stores. A random sample of 3 of these 10 shoppers is selected for a more in-depth study of how the economy has impacted their shopping behavior.a) What is the probability that exactly two prefer online shopping?b) What is the probability that the majority (either two or three) prefer shopping online?

Q: 4. According to TMUSS Quarterly (Totally Made-Up Sports Statistics) April 2017, the probability that…

A: The provided information are:

Q: A study wishes to see whether attending prekindergarden affects a child's likelihood to graduate…

A: We want to test the hypothesis Given  X1=215, n1=250 X2=260, n2=340

Q: Researchers G. Evans and E. Kantrowitz explored the health consequences for exposure to many…

A: Solution:  Let X be the random variable that preschool children living in poverty have been exposed…

Q: According to a recent study, 14% of U.S. drivers are uninsured. A random sample of seven drivers was…

A:

Q: The distribution of blood types for 100 Americans is listed in the table. If one donor is selected…

A: Given info: Here, n=100 and number of persons with A+ blood type is , x = 34.

Q: According to a study by a road safety interest group, the probability that speeding is a cause of a…

A: We have to find given probability.

Q: A study showed that 64.5​% of occupants involved in a fatal car crash wore seat belts. Of those in…

A: Solution: Let A be the event that  occupants involved in a fatal car crash wore seat belts. P( A)=…

Q: A survey of top executives revealed that 29% of them regularly read Time magazine, 22% read…

A: The answer is attached below,

Q: . In a poll of 124 Oxnard College students, 62 said their favorite basketball team was the Golden…

A: Answer  Correct answer is  83.1%

Q: . 10% Chance B. 11% Chance C. 12% Chance D. 17% Chance

A: We have to use the data given in table and basic probability theory to get the probabilities.

Q: An insurance company says there is a 77% likelihood that you will be responsible for a car accident…

A: p = 0.77 n = 320 million  ==============================

Q: When purchasing boards from a wood supplier, it has been documented that 44% of the boards that are…

A: Given that  Sample size n =300 Population proportion p=44%=0.44

Q: In a survey of 500 individuals, it was found that 60% of them prefer tea over coffee. Of those who…

A: Answer: To find the probability, we need to calculate the proportion of individuals who prefer tea…

Q: In a study of 44 patients at a rural hospital, there were 9 females in the ICU, 6 females in the…

A:

Q: According to the Federal Insurance Agency statistics, the proportion of teenage drivers between the…

A: It is given that n=100 and p=0.54.

Q: Given a woman has positive mammography, what is the probability she has breast cancer?

A: Let us define some events A : a woman has breast cancer. B : a woman does not have breast cancer. E…

Q: A new study to determine the effectiveness of winter flu vaccinations measures the benefits of a flu…

A: From the given information we find the solution.

Q: Pick the equation most appropriate to deal with the problem above. p(r) = p (1 – p)"- O p(z) = „C,p²…

A: Givenp=0.82n=80x~Binomial(n=80,p=0.82)

Q: Privacy is a concern for many users of the internet. One survey showed that 62.5% of internet users…

A:

Q: Twittering away The Pew Internet and American Life Project asked a random sample of 2253 U.S.…

A: Given Information: Sample size n=2253 Sample proportion p^=0.19

Q: 6. Based on U.S. Bureau of Justice data, 16% of those arrested in the U.S.A. are women. In one state…

A: Given, p = 0.16 sample  size n = 400 Mean E(x) = np = 0.16 *400 = 64 Standard deviation σ =…

Q: It is known that only 20% of college football players are considered as strong candidates for the…

A:

Q: Is the national crime rate really going down? Some sociologists say yes! They say that the reason…

A: Given The data is as follows: α=0.01 Population proportion, p=0.70 The claim is that the pop.…

Q: If the chance of suffering from occupatinal hazards is 25%, what is the probability that out of…

A:

Q: Children have a  1 in 2500 chance of being born with Cystic fibrosis and children have a 1 in 10000…

A: P(cystic fibrosis) = 1/2500 P(phocomelia) = 1/10000 Formula : P(either A or B) = P(A∪B) = P(A)+P(B)…

Q: of 50 carpenters finds that 30 are journeymen and 20 are master carpenter Of the journeymen, 10…

A: A survey of 50 carpenters finds that 30 are journeymen and 20 are master carpenter Of the…

Q: Some cyclists ride their bicycles on the wrong side of the road, the opposite direction of car…

A: It was stated that some cyclists ride their bicycles on the wrong side of the road, the opposite…

Q: 40% of students said that orange is their favorite juice. As part of further analysis, a random…

A: Given,40% of students said that orange is their favorite juice.ie, P = 40% = 0.40Also given that,As…

Q: An issue of Time Style and Design reported on a poll conducted on the shopping habits of wealthy…

A: Given data number of success , x= 410.0 sample size, n = 603 population…

Q: (fo-fe) Fill in the missing values in the table. Round your responses for the expected frequencies…

A: It is been asked to fill in the missing values of given table that consists of observed frequency,…

Q: he marketing department in the computer company is studying the pattern of the stores’ orders for…

A: Hi! Thank you for the question, As per the honor code, we are allowed to answer three sub-parts at a…

Q: Migraine medication was administered to patients in that 12% experienced weight gain as a side…

A: We have to find probability..