14. [-/3 Points] DETAILS MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER You may need to use the appropriate appendix table to answer this question. The mean cost of domestic airfares in the United States rose to an all-time high of $385 per ticket. Airfares were based on the total ticket value, which consisted of the price charged by the airlines plus any additional taxes and fees. Assume domestic airfares are normally distributed with a standard deviation of $110. (a) What is the probability that a domestic airfare is $528 or more? (Round your answer to four decimal places.) (b) What is the probability that a domestic airfare is $230 or less? (Round your answer to four decimal places.) (c) What is the probability that a domestic airfare is between $320 and $470? (Round your answer to four decimal places.) (d) What is the minimum cost in dollars for a fare to be included in the highest 4% of domestic airfares? (Round your answer to the nearest integer.) $ 15. [-/0.75 Points] DETAILS ASWSBE14 6.TB.2.105. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER You may need to use the appropriate appendix table or technology to answer this question. The weekly earnings of bus drivers are normally distributed with a mean of $385. If only 1.1 percent of the bus drivers have a weekly income of more than $428.51, what is the value (in dollars) of the standard deviation of the weekly earnings of the bus drivers? (Round your answer to the nearest integer.) $ Need Help? Read It