# Question: Assume simple random sampling Calculate the variance of the sample

Assume simple random sampling. Calculate the variance of the sample mean, σ2x for each of the following.

a. N = 1200; n = 80; s = 10

b. N = 1425; n = 90; s2 = 64

c. N = 3200; n = 200; s2 = 129

a. N = 1200; n = 80; s = 10

b. N = 1425; n = 90; s2 = 64

c. N = 3200; n = 200; s2 = 129

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