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# Unit 4 lab b: computing normal probability 2

The American Automobile Association (AAA) reported that families planning to travel over the labor day weekend would spend an average of \$749. Assume that the amount spent is normally distributed with a standard deviation of \$225. Answer the following questions:

1. What is the probability of family expenses for being less than \$400?
2. What is the probability of family expenses for being \$800 or more?
3. What is the probability that family expenses will be between \$500 and \$1000?
4. What would be the Labor Day weekend expenses have to be for the 5% of the families with the most expensive travel plans?

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