The monthly utility bills in a city are normally distributed, with a mean of

$100 and a standard deviation of $14.

Find the probability that a randomly selected utility bill is (a) less than $66, (b) between $83 and $90, and (c) more than $110.

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Part 1

(a) The probability that a randomly selected utility bill is less than

$66 ?

(Round to four decimal places as needed.)

Part 2

(b) The probability that a randomly selected utility bill is between $83 and $90 ?

(Round to four decimal places as needed.)

Part 3

(c) The probability that a randomly selected utility bill is more than $110 ?

(Round to four decimal places as needed.)