MATH（ENGLISH）
MATH（ENGLISH）
A certain company decided to save money by buying discount computer network servers.Each of the 10 servers has a probability of running well 91% of the time.What is the probability of at least one of the servers working well?(to 2 decimal places)
A certain company decided to save money by buying discount computer network servers.Each of the 10 servers has a probability of running well 91% of the time.What is the probability of at least one of the servers working well?(to 2 decimal places)
英语人气：495 ℃时间：2020-04-16 21:39:53
优质解答
first calculate the probability of all servers are not running well,it is 0.09^10the probability of at least one working well is 1-0.09^10 仅供参考,统计的东东早忘了,不太确定.
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