A study of the checkout lines at the Safeway Supermarket in the South Strand area revealed that between 4 and 7 p.m. on weekdays there is an average of four customers waiting in line. What is the probability that you visit Safeway today during this period and find:No customers are waiting?Four customers are waiting?Four or fewer are waiting?Four or more are waiting? * I also need help inputting these answers into an Excel doc via corresponding formulas. I attached my excel: problem 6-61. IS my work correct for rest of the excel’s problems?