The monthly utility bills in a city are normally distributed, with a mean of $100 and a

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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 $70,
(b) Between $90 and $120,
(c) More than $140.

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Elementary Statistics Picturing The World

ISBN: 9780321911216

6th Edition

Authors: Ron Larson, Betsy Farber

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Question Posted: Nov 24, 2015 06:59 AM

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The monthly utility bills in a city are normally distributed, with a mean of $100 and a

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a Using technology Px 70 Pz 25 00062 b ...View the full answer

Elementary Statistics Picturing The World

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