Question: EXERCISE 4 The sample variance is given by the following formula: n - where n is the sample size and a is the sample mean.

EXERCISE 4 The sample variance is given by the following formula:

n - where n is the sample size and a is the

EXERCISE 4 The sample variance is given by the following formula: n - where n is the sample size and a is the sample mean. By expanding the above formula show that: $2 = n n n

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