From past records, a department store finds that 70% of the people who enter the store will make a purchase on Black Friday.  Suppose that 3 customers are randomly selected at the store, answer the following questions:   1) What is the chance that exactly one out of three customers make a purchase?  Give your answer (%) rounded to one decimal place.  (For example, if your answer is 0.5125 (51.25%), then it will be 51.3% after being rounded to one decimal place.)      2) Explain clearly.

Q: A person has a 30 percent chance of winning on a scratch-off lottery ticket. What is the probability…

A:

Q: In a standard deck of cards, what is the probability that a person selects first a face card and…

A: given data  standard deck of 52 cards  select cards without replacement P(first face card and then…

Q: In an effort to cut costs and improve profits, many US companies have been outsourcing. In fact,…

A:

Q: A researcher wishes to conduct a study of the color preferences of new car buyers. Suppose that 50%…

A: Given datan= 10p= 0.5probability that exactly two-fifths of the buyers would prefer green is given…

Q: A certain math conference has 8,778 attendees.  Of these individuals, 6,659 are college professors,…

A:

Q: Suppose the probability of an IRS audit is 5.3 percent for U.S. taxpayers who file form 1040 and who…

A: From the provided information, The probability of an IRS audit is 5.3 percent for U.S. taxpayers who…

Q: It is estimated that 0.52 percent of the callers to the Customer Service department of Dell Inc.…

A:

Q: In one study, researchers at a clinic looked at more than 120,000 patients enrolled in 14…

A: Among the patients with heart problems, researchers found at least one risk factor in 84.8% of the…

Q: 2. The average amount of money spent on monthly household items is x = $1,087 with 6-1 = $254.18…

A: The provided information is as follows:The average amount of money spent on monthly household items…

Q: It is estimated that 0.55 percent of the callers to the Customer Service department of Dell…

A: It is estimated that 0.55 percent of the callers to the Customer Service department of Dell…

Q: A carton weighing 250 pounds breaks 1 out of every 5 tables it is placed on. If a carton weighs 300…

A: we only know that a carton weighing 250 pounds breaks 1 out of every 5 tables it is placed on. We…

Q: In the US, 10.5% of the population is diabetic. What is the probability that in a random sample of…

A: Suppose p is the true proportion of diabetic people in the U.S.

Q: 1. 100 people each independently flip a fair coin 10 times. What's the probability that NONE of them…

A: Sample size ,n = 100 Each independently flip a coin 10 times Total outcomes = 210 = 1024 Only once…

Q: In a poll conducted on February 3 through 18 in 2021  41% of the United States was found to be…

A: From the provided information,41% of the United States was found to be Independent in political…

Q: The weatherman says that there is a 60% chance of rain today. a. What is the probability that it…

A:

Q: A recent study of cardiovascular risk factors reported that 30% of adults met criteria for…

A: Let X be the number of adults that meet the criteria for hypertension. Therefore, The probability…

Q: small liberal arts college in the Northeast has 350 freshmen. 105 of the freshmen are education…

A: Given that, a small liberal arts college in the Northeast has 350 freshmen. 105 of the freshmen are…

Q: Suppose the probability of an IRS audit is 2.9 percent for U.S. taxpayers who file form 1040 and who…

A: Given that in the question  Probability of an IRS audit is 2.9 percent for U.S. taxpayers who file…

Q: The Food Marketing Institute shows that 17% of households spend more than $100 per week on…

A: Given N=800 P=0.17

Q: Frequently Occasionally Not at All Males 221 456 795 Females 207 430 1378 Find the probability of…

A: Step 1 Let A be the event that individual is a female Let B be the event that individual is not…

Q: According to Reader's Digest, 50% of primary care doctors think their patients receive unnecessary…

A: Given: 50% of primary care doctors think their parents receive unnecessary medical care. That is,…

Q: This past February1 a survey of n-Canadians between the ages of 18 and 34 years of age. The finding?…

A: The proportion of all Canadians between the age of 18 and 34 years of age who admit to having…

Q: Suppose that at Indiana State University, 35% of students are international students. What is the…

A: Solution-: Given: n=100,p=0.35 We find, P[40 students out of a randomly sampled group of 100 are…

Q: Suppose that at UCLA, 35% of students are international students. What is the probability that 40…

A: Solution-: Given: n=100,p=0.35 (35%) We find, P[X=40]=?

Q: d. The probability of getting a royal flush when five cards are selected at random is 49.740- e. The…

A: Classical probability is defined as the perspective on probability that most individuals first…

Q: If the prevalence of a certain condition in the population is 0.4. What is the probability that…

A: Answer: Given that: p= 0.4 , n= 10 now will use Binomial probability P(X=x)=nx*px*(1–p)n–x,where…

Q: What would be a fair premium for the insurance? We are assuming that the insurance company earns no…

A: Assume you have a laptop worth $2,400 and there's a 4% chance that the laptop will be lost or stolen…

Q: A study reveals that 82% relationships end in the first two years. A random sample of 100 newly…

A: Probability that a relationship ends in the first two years is p = 82% = 0.82 Let, X = Number of…

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.