Consider the segment of an electric circuit with three relays shown here. Current will flow from A

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Consider the segment of an electric circuit with three relays shown here. Current will flow from A to B if there is at least one closed path when the switch is thrown. Each of the three relays has an equally likely chance of remaining open or closed when the switch is thrown. Let Y represent the number of relays that close when the switch is thrown.

a. Find the probability distribution for Y and display it in tabular form.
b. What is the probability that current will flow from A to B?

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Related Book For  answer-question

Statistics For Engineering And The Sciences

ISBN: 9781498728850

6th Edition

Authors: William M. Mendenhall, Terry L. Sincich

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