(Solved): (a) The probability that a randomly selected utility bill is less than \( \$ 68 \) is (Round to fo ...

(a) The probability that a randomly selected utility bill is less than \( \$ 68 \) is (Round to four decimal places as needed.) (b) The probability that a randomly selected utility bill is between \( \$ 85 \) and \( \$ 110 \) is (Round to four decimal places as needed.) (c) The probability that a randomly selected utility bill is more than \( \$ 130 \) is (Round to four decimal places as needed.)