Does a reliability rating of 97% mean that there is a 97% chance that the device will not fail any of the 100 times? why? How much safer would it be to use a second safety hook independent of the first

Does a reliability rating of 97% mean that there is a 97% chance that the device will not fail any of the 100 times? why? How much safer would it be to use a second safety hook independent of the first

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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Question

100%

Assume one of your favorite activities is mountain climbing. When you go mountain climbing, you have several safety devices to keep you from falling. You notice that attached to one of your safety hooks is a reliability rating of 97%.

You estimate that throughout the next year you will be using this device about 100 times.

Does a reliability rating of 97% mean that there is a 97% chance that the device will not fail any of the 100 times? why?

How much safer would it be to use a second safety hook independent of the first?

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