MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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Please give me a final answers
Assume that utility bills (electricity, water and gas) for a certain city have normal distribution with mean of
$165 per month and standard deviation of $44 per month.
(a) What is the probability that a randomly selected household in this city is paying less than $231 per
month for utilities?
Round to 4 decimal places.
(b) What is the probability that a randomly selected household in this city is paying between $134 and $231
per month for utilities?
Answer =
Answer =
(c) What is the probability that a randomly selected household in this city is paying more than $134 per
month for utilities?
Answer =
Round to 4 decimal places.
Answer = $
Round to 4 decimal places.
(d) What should be a utility bill of a household to be in the sixty-seventh percentile of utility bills in this
city?
Round to 2 decimal places.
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Transcribed Image Text:Assume that utility bills (electricity, water and gas) for a certain city have normal distribution with mean of $165 per month and standard deviation of $44 per month. (a) What is the probability that a randomly selected household in this city is paying less than $231 per month for utilities? Round to 4 decimal places. (b) What is the probability that a randomly selected household in this city is paying between $134 and $231 per month for utilities? Answer = Answer = (c) What is the probability that a randomly selected household in this city is paying more than $134 per month for utilities? Answer = Round to 4 decimal places. Answer = $ Round to 4 decimal places. (d) What should be a utility bill of a household to be in the sixty-seventh percentile of utility bills in this city? Round to 2 decimal places.
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