According to the U.S. Energy Administration, the mean monthly household electric bill in the United States is $99.70 with a standard deviation of $20. Given that household electric bills follow a Normal Distribution, what is the probability that a randomly chosen household electric bill: a) is over $131.50? b) is less than $80? c) is between $85.50 and $110.50?
According to the U.S. Energy Administration, the mean monthly household electric bill in the United States is $99.70 with a standard deviation of $20. Given that household electric bills follow a Normal Distribution, what is the probability that a randomly chosen household electric bill: a) is over $131.50? b) is less than $80? c) is between $85.50 and $110.50?
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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According to the U.S. Energy Administration, the mean monthly household electric bill in the United States is $99.70 with a standard deviation of $20. Given that household electric bills follow a
a) is over $131.50?
b) is less than $80?
c) is between $85.50 and $110.50?
d) is either higher than $105 or less than $90?
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