Calculus and Above

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A grocery store's receipts show...

A grocery store's receipts show that customer purchases have a skewed distribution with a mean of $40 and a standard deviation of $30.

a. explain why you cannot determine the probability that the next customer will spend at least $70.

b. Can you estimate the probability that the next 4 customers will spend an average of at least $70? explain

c. Is it likely that the next 100 customers will spend an average of at least $70? explain.

a. explain why you cannot determine the probability that the next customer will spend at least $70.

b. Can you estimate the probability that the next 4 customers will spend an average of at least $70? explain

c. Is it likely that the next 100 customers will spend an average of at least $70? explain.

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