2.2 Consider the sample mean as a random variable defined by x D 1 N N X...
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2.2 Consider the sample mean as a random variable defined by x D 1
N N
X iD1 xi (2.23)
where xi are identical independent random variables with mean and variance 2.
Show that the variance of x is equal to 2=N.
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Related Book For
Statistics And Analysis Of Scientific Data
ISBN: 9781493982394
2nd Edition
Authors: Massimiliano Bonamente
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