What Does It Mean to Say That the Sample Mean

question 46

Multiple Choice

What does it mean to say that the sample mean is an unbiased estimator of the population mean?

• A)The sample means will vary minimally from the population mean.
• B)The sampling distribution of possible sample means is approximately normally distributed,regardless of the shape of the distribution in the population.
• C)If we select a sample at random,then on average we can expect the sample mean to equal the population mean.
• D)all of the above

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Definitions:

Variance

A measure of how spread out a set of numbers is, indicating the variability from the mean.

Index Fund

An investment fund designed to replicate and match the performance of a specific market index.

Expected Monetary Value

The predicted amount of money that an action or decision is expected to generate, considering all possible outcomes and their probabilities.

Index Funds

Mutual funds or exchange-traded funds designed to replicate the performance of a specific index, such as the S&P 500.