Question: A What is an unbiased estimator b For the following statistics

a. What is an unbiased estimator?
b. For the following statistics, identify those that are unbiased estimators: mean median, range, variance, proportion.
c. Determine whether the following statement is true or false: “The sample standard deviation is a biased estimator, but the bias is relatively small in large samples, so s is often used to estimates.”

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