K Care A grocery store's receipts show that Sunday customer purchases have a skewed distribution with a mean of $30 and a standard deviation of $16. Suppose the store had 298 customers this Sunday. a) Estimate the probability that the store's revenues were at least $9,300. b) If, on a typical Sunday, the store serves 298 customers, how much does the store take in on the worst 1% of such days? a) The probability is (Round to four decimal places as needed.)