The Advantage of Squaring the Deviation of Each Score from the Mean

question 62

Multiple Choice

The advantage of squaring the deviation of each score from the mean and then summing is that

• A)it makes the sample variance an unbiased estimator of the population variance
• B)it makes the degrees of freedom for sample variance equal to n - 1
• C)it produces a minimal positive solution that is not zero,so long as all scores are not exactly the same value
• D)both A and C

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Definitions:

Proximal Convoluted Tubule

The portion of the nephron in the kidney responsible for reabsorbing water, sodium, and other substances from the filtered fluid.

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Chemical messengers produced by glands in the body that regulate various physiological processes, including growth, metabolism, and reproduction.

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A rule or directive made and maintained by an authority to regulate behavior, usually in the context of legal, professional, or institutional settings.