If the standard deviation of a population is 100, then based on a sample of size 100, the standard deviation of sample mean is equal to:
10
The standard deviation of the sample mean (also known as the standard error of the mean) is calculated as:
Standard error = σ / √n, where σ is the population standard deviation and n is the sample size.
Given that σ = 100 and n = 100:
Standard error = 100 / √100 = 100 / 10 = 10.
The standard deviation of the sample mean is 10.
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