(a) The probability that a randomly selected utility bill is less than $67 is (Round to four decimal places as needed.) (b) The probability that a randomly selected utility bill is between $87 and $100 is (Round to four decimal places as needed.) (c) The probability that a randomly selected utility bill is more than $110 is (Round to four decimal places as needed.)

MATLAB: An Introduction with Applications
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Chapter1: Starting With Matlab
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The monthly utility bills in a city are normally distributed, with a mean of $100 and a standard deviation of $12. Find the probability that a randomly selected utility bill is (a) less than $67, (b) between $87 and $100, and (c) more
than $110.
C
(a) The probability that a randomly selected utility bill is less than $67 is
(Round to four decimal places as needed.)
(b) The probability that a randomly selected utility bill is between $87 and $100 is
(Round to four decimal places as needed.)
(c) The probability that a randomly selected utility bill is more than $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 $12. Find the probability that a randomly selected utility bill is (a) less than $67, (b) between $87 and $100, and (c) more than $110. C (a) The probability that a randomly selected utility bill is less than $67 is (Round to four decimal places as needed.) (b) The probability that a randomly selected utility bill is between $87 and $100 is (Round to four decimal places as needed.) (c) The probability that a randomly selected utility bill is more than $110 is (Round to four decimal places as needed.)
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