Homework: MSL #6 HW Score: 33.33%, 5 of 15 points Pan 1 of3 0 Points: 0 of1 The monthly utility bills in a city are normally distributed, with a mean of $100 and a standard deviation of $13. Find the probability that a randomly selected utility bill is (a) less than $68, (b) between $86 and $110, and (c) more than $130. (a) The probability that a randomly selected utility bill is less than $68 is (Round to four decimal places as needed.)