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 $70, (b) between $90 and $110, and (c) more than $140. C (a) The probability that a randomly selected utility bill is less than $70 is 0.0162. (Round to four decimal places as needed.) (b) The probability that a randomly selected utility bill is between $90 and $110 is (Round to four decimal places as needed.)

MATLAB: An Introduction with Applications
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Author:Amos Gilat
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Please answer b and c.

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 $70, (b)
between $90 and $110, and (c) more than $140.
C
(a) The probability that a randomly selected utility bill is less than $70 is 0.0162.
(Round to four decimal places as needed.)
(b) The probability that a randomly selected utility bill is between $90 and $110 is
(Round to four decimal places as needed.)
Transcribed Image Text: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 $70, (b) between $90 and $110, and (c) more than $140. C (a) The probability that a randomly selected utility bill is less than $70 is 0.0162. (Round to four decimal places as needed.) (b) The probability that a randomly selected utility bill is between $90 and $110 is (Round to four decimal places as needed.)
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