10. (-/5 Points) DETAILS ASWSBE14 5.E.037. 0/10 Submissions Used MY NOTES PRACTICE ANOTHER You may need to use the appropriate appendix table or technology to answer this question. According to a 2018 survey by Bankrate.com, 20% of adults in the United States save nothing for retirement (CNBC website). Suppose that 15 adults in the United States are selected randomly. (a) Is the selection of the 15 adults a binomial experiment? Explain. a binomial experiment because the adults are selected -Select- P-Select and there are outcomes possible. The selection -Select- trial to trial, the trials are -Select- from (b) What is the probability that all of the selected adults save nothing for retirement? (Round your answer to four decimal places.) (c) What is the probability that exactly four of the selected adults save nothing for retirement? (Round your answer to four decimal places.) (d) What is the probability that at least one of the selected adults saves nothing for retirement? (Round your answer to four decimal places.) Need Help? Read It