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 $115. Use Table 1 in Appendix B.

**a.** What is the probability that a domestic
airfare is $530 or more (to 4 decimals)?

**b.** What is the probability that a domestic
airfare is $245 or less (to 4 decimals)?

**c.** What if the probability that a domestic
airfare is between $320 and $470 (to 4 decimals)?

**d.** What is the cost for the 3% highest domestic
airfares? (rounded to nearest dollar)

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Answer #1

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
$120. Use Table 1 in Appendix B.
a. What is the probability that a domestic
airfare is $530 or more (to 4 decimals)?
b. What is the...

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
$115. Use Table 1 in Appendix B.
a. What is the probability that a domestic
airfare is $560 or more (to 4 decimals)?
b. What is the...

The mean cost of domestic airfares in the United States rose to
an all-time high of $375 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
$120. Use Table 1 in Appendix B.
a. What is the probability that a domestic
airfare is $560 or more (to 4 decimals)?
b. What is the...

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
$120. Use Table 1 in Appendix B. a. What is the probability that a
domestic airfare is $560 or more (to 4 decimals)? b. What is the...

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
$120. Use Table 1 in Appendix B. a. What is the probability that a
domestic airfare is $550 or more (to 4 decimals)? b. What is the...

The mean cost of domestic airfares in the United States rose to
an all-time high of $390 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
$100. Use Table 1 in Appendix B.
a. What is the probability that a domestic
airfare is $545 or more (to 4 decimals)?
b. What is the...

The mean cost of domestic airfares in the United States rose to
an all-time high of $390 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
$100. Use Table 1 in Appendix B.
A. What is the probability that a domestic
airfare is $260 or less (to 4 decimals)?
B. What if the...

The mean cost of domestic airfares in the United States rose to
an all-time high of $395 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
$100. Use Table 1 in Appendix B.
a. What is the probability that a domestic
airfare is $540 or more (to 4 decimals)?
b. What is the...

The mean cost of domestic airfares in the United States rose to
an all-time high of $390 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. Use Table 1 in Appendix B.
a. What is the probability that a domestic
airfare is $545 or more (to 4 decimals)?
b. What is the...

The mean cost of domestic airfares in the United States rose to
an all-time high of $375 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
$100. Use Table 1 in Appendix B.
a. What is the probability that a domestic airfare is $540 or
more (to 4 decimals)?
b. What is the...

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