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Based on recent experience, you expect this Saturday's total receipts to have a mean of $2,353.25 and a standard deviation of $291.63 and to be normally distributed.

a. Find the probability of a typical Saturday, defined as total receipts between $2,000 and $2,500.

b. Find the probability of a terrific Saturday, defined as total receipts over $2,500.

c. Find the probability of a mediocre Saturday, defined as total receipts less than $2,000.

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