A Restaurant's Receipts Show That the Cost of Customers' Dinners

Multiple Choice

A restaurant's receipts show that the cost of customers' dinners has a skewed distribution with a mean of $54 and a standard deviation of $18.What is the probability that the next 100 customers will spend an average of less than $50 on dinner?

A) 0.4121
B) 0.9868
C) 0.0132
D) 0.5879
E) 0.9614