Hard drives on a computing system have a 5% chance of crashing. Therefore, three backups have been installed. The system will operate if at least one of the hard drives is working. What is the probability that all the drives fail? 0.05 0.0025 0.000125 0.00000625

Q: Fifty-eight percent of American adults eat at a table-service restaurant at least once a week.…

A:

Q: The average number of matches in which Galatasaray football team's football matches were postponed…

A: we have given that  the number of matches follow the Poisson distribution with parameter(lambda)= 5

Q: A telephone survey to determine viewer response to a new television show obtained the following…

A: There are total = 4+8+11+14+13=50 viewers Number of viewers who rated average or better is=…

Q: Most coffee drinkers take a little time each day for their favorite beverage, and many take more…

A:

Q: The Harvard School of Public Healthcompleted a study on alcohol consumption on college campuses in…

A: E : Event that a chosen student abstained from alcohol. w: women attends an all-women school w':…

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

A:

Q: In engineering data analysis class, there are 20% girls and 80% boys. Students are either in OBL or…

A: Solution: 2. From the given information,

Q: In testing a certain kind of truck tire over rugged terrain, it is found that 25% of the trucks fail…

A:

Q: Fifty-NINE percent of American adults eat at a table-service restaurant at least once a week.…

A: GivenNo.of American adults eat at a table service restuarant =0.59

Q: In a football school, 25 matches per month are played. 15 of the 25 matches played in the past years…

A: Given ,no.of matches (n) =25and P=1525=35X=no.of matches won

Q: Provide an appropriate response. The National Association of Realtors estimates that 23% of all…

A: Given information Probability that homes purchased in 2004 considered investment properties(p) =…

Q: A fruit retailer complains to a wholesaler that 60 percent of the boxes of apples shipped to the…

A: Given:X: Number of boxes contain rotten applen: Sample size = 15p: Proportion of the boxes of apples…

Q: A recent survey found that 70% of all adults over 50 wear sunglasses for driving. In a random sample…

A:

Q: Students in a school were surveyed about their study habits. Forty-two percent of students said they…

A: Let weeknight = A and weekends=B P(A∩B) =42100=2150 P(B) =47100 P(A∪B) = 65100=1320 P(A) =? (have to…

Q: A recent survey shows that 60% of families regularly schedule family vacations for the month of…

A: Given, 60% of families regularly schedule family vacations for the month of April. Let X = number of…

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: In testing a certain kind or truck tire over rugged terrain, it is found that 40% of the trucks fail…

A: (a) The probability that from 2 to 6 have blowouts is obtained below: From the given information,…

Q: In a technology company, it is known that the average of network failure is 3 per week. What is the…

A: Given : Average, μ= λ = 3

Q: A 2010 PeW Research Center survey found that more Americans believe they could give up their…

A: I solved exactly first three subparts because of bartleby policy if you want more please uplode…

Q: During a Formula 1 test. 25% of the cars that participated in the test experienced a tire blowout.…

A: Correct answer is  (C) 0.1484

Q: A survey of new Toyota Corolla owners has shown that during the first year of ownership, 11% of…

A: x = no. of time needs repair in a year x p(X) 0 0.75 1 0.11 2 0.10 >=3 0.04

Q: A marketing firm would like to test-market the name of a new energy drink targeted at 18- to…

A: Given: A marketing firm would like to test-market the name of a new energy drink targeted at 18- to…

Q: Q. A state public health department wishes to investigate the effectiveness of a campaign against…

A:

Q: In testing an HP printer, the Quality Inspector found that 25% of the printers fail to pass the test…

A: Obtain the probability that fewer than 4 fail to pass the test print. The probability that fewer…

Q: When purchasing bulk orders of​ batteries, a toy manufacturer uses this acceptance sampling​ plan:…

A: Binomial distribution:Since there are only two outcomes (shipment accepted and shipment rejected),…

Q: In 80-year-olds, only two percent APOE4 homozygous in the population, but twelve percent APOE4…

A: It is given that 2% of 80 yr old population are APOE4 homozygous so PH=0.02 It is also given that…

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: In a recent year, 304 of the approximately 300,000,000 people in the United States were struck by…

A: a. In a recent year, 304 of 300,000,000 people in the United States were struck by lightning.

Q: In a data set of 10,000 users, 800 users watched the movie Harry Potter; 600 users watched the movie…

A:

Q: A marketing firm would like to test-market the name of a new energy drink targeted at 18- to…

A:

Q: Fifteen percent of the products produced by an industrial robot are known to be defective. A…

A: GivenNo.of products from production run (n)=6p=0.15Let "x"be the number of products selected by the…

Q: A large national study finds that 10% of pregnant women deliver prematurely. A local obstetrician is…

A: Given: Probability of women deliver prematurely is, p=10%=0.1. Number of pregnant women is, n=16.…

Q: A study by the National Park Service revealed that 50 percent of vacationers going to the Rocky…

A: The following information has been given: The probability of vacationers visit Yellowstone Park is…

Q: it is reported that 20 percent of american households use a cell phone exclusively for their…

A: We have to find given probability.

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: What is the probability that a female college student from this group chose "housework" as their…

A: What is the probability that a female college student from this group chose "housework" as their…

Q: The grades of a freshman college class, obtained after the first year of college, were analyzed.…

A: Percentage of students In top quarter is 70%. College class had graduated in the upper 10% of their…

Q: A manufacturer of cotter pins knows that 5 percent of his product is defective. If he sellseotter…

A: A binomial distribution is used when there are n number of independent trials with equal probability…

Q: 14 percent of the school age population attends private schools and 1% of those get​ executive-level…

A:

Q: In testing a certain kind of truck tire over rugged terrain, it is found that 39% of the trucks fail…

A: Given : Let X : Number of trucks have blowouts  p : 0.39 ( Probability of trucks fail to complete…

Q: Two machines in a factory (A and B), produce the following proportions: If commodity of metal…

A: to find the probability that the damaged production was produced by machine b

Q: In 1990, 22% of Americans completed four years of college; 53% of them were women (Time, Jan. 19,…

A:

Q: It is known that​ 35% of students change their major in college. In a random sample of 500​…

A:

Q: In testing a certain kind or truck tire over rugged​ terrain, it is found that 25​% of the trucks…

A: In question, Given that In testing a certain kind or truck tire over rugged​ terrain, it is found…

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: As suburban gardeners know, deer will eat almost anything green. In a study of pine seedlings at an…

A:

Q: (a) What is the probability that the vaccine selected is an outdated one? (b) If the vaccine…

A: Here define events and draw tree diagram  Here use Bayes theorem

Q: Bicycles for hire at the Durban Beach front are deemed beyond repair when one or both its wheels are…

A: A number of events are said to be independent if the probability of occurrence of any one of them is…

Q: A shipment of 10 microwave ovens contains 2 defective units. A restaurant buys four of these units.…

A: