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(Solved): The number of cell phone minutes used by staff of DIT at Bowie State University follows a normal di ...
The number of cell phone minutes used by staff of DIT at Bowie State University follows a normal distribution with a mean of 550 and a standard deviation of 50 . What is the probability that a given staff uses more than 400 minutes?
Expert Answer
Given, the number of cell phone minutes used by staff of DIT at Bowie State University follows a normal distribution with a mean of 550 and a standard deviation of 50.Let X be a random variable denoting the cell phone minutes used by staff of DIT at ...