Does the table represent an exponential function? Explain why or why not. (0,60), (1,36), (2,21.6), (3,12.96), (4,7.776), (5,4.6656)

The computer that controls a bank's automatic teller machine crashes a mean of 0.6 times per day. what is the probability that, in any seven-day week, the computer will crash less than 5 times? round your answer to four decimal places