(b) The signals {x[0]. . „x[N – 1]} are observed, that are independent and normally distributed with a zero mean and a variance of a². To estimate the variance, we use the following estimator: az x²[n]. Explain if this is an unbiased estimator.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
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Chapter10: Statistics
Section10.1: Measures Of Center
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2b

The signals {x[0], .,x[N – 1]} are observed, that are independent and normally
distributed with a zero mean and a variance of o?. To estimate the variance, we use
the following estimator:
(b)
N-1
a² = > x²[n].
n=0
Explain if this is an unbiased estimator.
Transcribed Image Text:The signals {x[0], .,x[N – 1]} are observed, that are independent and normally distributed with a zero mean and a variance of o?. To estimate the variance, we use the following estimator: (b) N-1 a² = > x²[n]. n=0 Explain if this is an unbiased estimator.
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