系统故障率 [英] Failure rate of a system

问题描述

在Microsoft采访中，有人问我以下问题:

In a Microsoft interview I was asked the following question:

保证系统在任何给定的小时内有10％的时间发生故障，两个小时后的故障率是多少?一百万小时后?

A system is guaranteed to fail 10% of a time within any given hour, what's the failure rate after two hours ? after a million hour ?

我对可靠性理论和故障率不是很有经验，但是对此问题的任何投入将不胜感激.

I'm not very experienced in Reliability theory and Failure rates, but any input on this question will be very much appreciated.

推荐答案

1-(.9 ^ h)，其中h是小时数

1-(.9^h), where h is the number of hours

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