Question: The American Automobile Association AAA reported that families planning to

The American Automobile Association (AAA) reported that families planning to travel over the Labor Day weekend would spend an average of $749 (The Associated Press, August 12, 2012). Assume that the amount spent is normally distributed with a standard deviation of $225.
a. What is the probability that family expenses for the weekend will be less than $400?
b. What is the probability that family expenses for the weekend will be $800 or more?
c. What is the probability that family expenses for the weekend will be between $500 and $1000?
d. What are the Labor Day weekend expenses for 5% of the families with the most ex-pensive travel plans?




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  • CreatedFebruary 16, 2015
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