The mean cost of domestic airfares in the United States rose to an all-time high of $380 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 $105. Use Table 1 in Appendix B. a. What is the probability that a domestic airfare is $535 or more (to 4 decimals)? .0793 b. What is the probability that a domestic airfare is $260 or less (to 4 decimals)? .0985

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The mean cost of domestic airfares in the United States rose to an all-time high of $380 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 $105. Use Table 1 in Appendix B.
a. What is the probability that a domestic airfare is $535 or more (to 4 decimals)?
.0793
b. What is the probability that a domestic airfare is $260 or less (to 4 decimals)?
.0985
Transcribed Image Text:The mean cost of domestic airfares in the United States rose to an all-time high of $380 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 $105. Use Table 1 in Appendix B. a. What is the probability that a domestic airfare is $535 or more (to 4 decimals)? .0793 b. What is the probability that a domestic airfare is $260 or less (to 4 decimals)? .0985
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