Mathematics, 06.05.2020 05:46 chanahvanya
The average hourly charge of plumbers in the Denver area is $84.00 with a standard deviation of $4.00. Assume that the hourly charges of the plumbers in Denver are normally distributed. If a person living in Denver calls a random plumber, what is the probability that the plumber will charge at least $86.00 per hour. Express your answer as a decimal between 0 and 1, to the nearest hundredth.
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The average hourly charge of plumbers in the Denver area is $84.00 with a standard deviation of $4.0...
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