A Riley is a music DJ. So far, her average playing time per day is 5 hours, with a standarddeviation of 1 hour. What is the probability that, on the next 30 days, her average playing timeis less than 4.5 hours?

The random variable X follows normal distribution. We have to find the probability that on the next…

Answered: 4 Riley is a music DJ. So far, her…

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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4 Riley is a music DJ. So far, her average playing time per day is 5 hours, with a standard deviation of 1 hour. What is the probability that, on the next 30 days, her average playing time is less than 4.5 hours?