The mean lifespan of a generic brand of incandescent light bulbs is 962 hours with a standard deviation of 107. Use the Z-Score Table in the book to determine what percent of these light bulbs should last between 875 and 1,198 hours. State your answer as a percent rounded to the nearest hundredth of a percent, but do not include a % symbol with your response.

The mean lifespan of a generic brand of incandescent light bulbs is 962 hours with a standard deviation of 107. Use the Z-Score Table in the book to determine what percent of these light bulbs should last between 875 and 1,198 hours. State your answer as a percent rounded to the nearest hundredth of a percent, but do not include a % symbol with your response.

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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