Suppose the store in Exercise 14 had 312 customers this Sunday. a) Estimate the probability that the

Question:

Suppose the store in Exercise 14 had 312 customers this Sunday.
a) Estimate the probability that the store's revenues were at least $10,000.
b) If, on a typical Sunday, the store serves 312 customers, how much does the store take in on the worst 10% of such days?
Exercise 14
A grocery store's receipts show that Sunday customer purchases have a skewed with a mean of $32 and a standard deviation of $20.
Distribution
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