nieScarmelch nieScarmelch

26-09-2016
Mathematics

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The length of a phone conversation is normally distributed with a mean of 4 minutes and a standard deviation of 0.6 minutes. What is the probability that a conversation lasts longer than 5 minutes?

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nerdygirrrl14 nerdygirrrl14

26-09-2016

that the deviation last 0.9 minutes

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