dakotakk6401 dakotakk6401

16-08-2017
Mathematics

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A discrete random variable has a mean of 400 and a variance of 64. what is the standard deviation?

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CastleRook CastleRook

23-08-2017

Given that a random variable has a mean of 400 and variance of 64, the standard deviation will be:
s.d=sqrt(variance)
=sqrt(64)
=8
therefore the variance is 8

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