Points: 0 of 1 Save 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 $70. (b) between $85 and $120, and (c) more than $140 (a) The probability that a randomly selected utility bill is less than $70 is 0.0105 (Round to four decimal places as needed.) (b) The probability that a randomly selected utility bill is between $85 and $120 is (Round to four decimal places as needed.)