b) If 12 people are called for jury duty, what is the probability that 6 or more will not be available to serve on the jury? (Round your answer to three decimal places.) (c) Find the expected number of those available to serve on the jury. What is the standard deviation? (Round your standard deviation to two decimal places.) μ =  people σ =  people (d) What is the smallest number of people n that the jury commissioner contact to be at least 95.9% sure of finding at least 12 people who are available to serve? (Enter your answer as a whole number.)  people

The class I'm taking is statistics!   I am completely stuck. Need help. I have attached the problem. Please view attachment before answering.  Thank you!

A recent survey by a market research company found that 56% of all US households have internet access. Answer the following as decimals rounded to three places. a. If five households are chosen at random, what is the probability that all five have internet access? Preview b. What is the probability that none of the five have internet access? Preview c. If five households are chosen, what is the probability that at least one household has internet access? Preview

Suppose the probability of an IRS audit is 1.2 percent for U.S. taxpayers who file form 1040 and who earned $100,000 or more. (a) What are the odds that such a taxpayer will be audited? (Round your answers to the nearest whole number.)  Odds that a taxpayer will be audited             to  (b) What are the odds against such a taxpayer being audited? (Round your answers to the nearest whole number.) Odds against a yaxpayer being audited          to

1. You want to test to see if the claim is correct. A math teacher claims the probability that a person picked at random in Philadelphia is visiting the city is less than 40%.

(This is a introduction to statistics course) 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.

a. Assuming that the rate of 23.9% is correct, find the probability that 398 or more of the 1482 adults have sleepwalked. b. Is that result of 398 or more significantly high? c. What does the result suggest about the rate of 23.9%?

A poll reported that 62% of adults were satisfied with the job the major airlines were doing. Suppose 25 adults are selected at random and the number who are satisfied is recorded. Complete parts (a) through (e) below. (a) Explain why this is a binomial experiment. Choose the correct answer below. OA. This is a binomial experiment because there are three mutually exclusive outcomes for each trial, there is a fixed number of trials, the outcome of one trial does not affect the outcome of another, and the probability of success is the same for each trial. C OB. This is a binomial experiment because there are two mutually exclusive outcomes for each trial, there is a random number of trials, the outcome of one trial does not affect the outcome of another, and the probability of success is the same for each trial. O C. This is a binomial experiment because there are two mutually exclusive outcomes for each trial, there is a fixed number of trials, the outcome of one trial does not affect…

The following is a table showing the results of a poll taken on campus.  Will You Vote in the Upcoming Election?   Male Female Yes 24 22 No 20 30 Not decided 28 38  What is the probability that a randomly selected student from this poll has decided to vote in the upcoming election? Express your answer as a fraction in lowest terms or a decimal rounded to the nearest millionth.

Suppose you like to keep a jar of change on your desk. Currently, the jar contains the following: 18 Pennies 14 Dimes 18 Nickels 9 Quarters     What is the probability that you reach into the jar and randomly grab a quarter and then, without replacement, a penny? Express your answer as a fraction or a decimal number rounded to four decimal places.