The long-distance calls made by the employees of a company are normallydistributed with a mean of 6.3 minutes and a standard deviation of 2.2 minutes. Findthe probability that a calla) lasts more than 7 minutes.b) lasts between 5 and 10 minutes.hles

Given,Mean, μ = 6.3 minutes.Standard deviation, σ = 2.2 minutes.Let X be a random variable…

Answered: The long-distance calls made by the…

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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The long-distance calls made by the employees of a company are normally distributed with a mean of 6.3 minutes and a standard deviation of 2.2 minutes. Find the probability that a call a) lasts more than 7 minutes. b) lasts between 5 and 10 minutes. bles