perplexus.info :: Just Math : Debugging a system

Debugging a system (Posted on 2018-04-16)

A certain device consists of 24 equally reliable components. It is known that one (and only one) is faulty. The location of the failed component is performed by replacement - one after another.

1. Find the probabilty of restoring the functioning of the system within 3 trials.
2. Same question for n trials.

Submitted by Ady TZIDON

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Solution: (Hide)

1. p=.125
2. for n=0,1,2,...22: p=n/24
for n= 23, 24: p=1

Comments: ( You must be logged in to post comments.)

Subject	Author	Date
re: Debugged! (spoiler) @ Steve	Ady TZIDON	2018-04-20 11:51:45
re(3): Debugged! (spoiler)	Ady TZIDON	2018-04-17 02:15:39
re(2): Debugged! (spoiler)	Charlie	2018-04-16 21:11:39
re: Debugged! (spoiler)	JayDeeKay	2018-04-16 18:46:04
Debugged! (spoiler)	Steve Herman	2018-04-16 12:23:01

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