The average time for a mail carrier to cover a route is 380 minutes, and the standard deviation is 16 minutes. If one of these trips is selected at random, find the probability that the carrier will have the following route time. Assume the variable is normally distributed: (a) At least 350 minutes (b) At most 395 minutes
The average time for a mail carrier to cover a route is 380 minutes, and the standard deviation is 16 minutes. If one of these trips is selected at random, find the probability that the carrier will have the following route time. Assume the variable is normally distributed: (a) At least 350 minutes (b) At most 395 minutes
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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Transcribed Image Text:The average time for a mail carrier to cover a route is 380
minutes, and the standard deviation is 16 minutes. If one
of these trips is selected at random, find the probability
that the carrier will have the following route time. Assume
the variable is normally distributed:
(a) At least 350 minutes
(b) At most 395 minutes
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