Question Help A grocery store's receipts show that Sunday customer purchases have a skewed distribution with a mean of $31 and a standard deviation of $22. Suppose the store had 308 customers this...

Extracted text: Question Help A grocery store's receipts show that Sunday customer purchases have a skewed distribution with a mean of $31 and a standard deviation of $22. Suppose the store had 308 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 308 customers, how much does the store take in on the worst 10% of such days? a) The probability is (Round to four decimal places as needed.)