Chapter 4, Problem 21P

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8th Edition

Frederick J Gravetter + 1 other

ISBN: 9781133956570

Textbook Problem

Calculate *SS*, variance, and standard deviation for the following sample of *n* = 5 scores: 10, 4, 8, 5, 8. (Note: The definitional formula for *SS* works well with these scores.)

To determine

The sum of squared deviations, variance and standard deviation for the sample of scores.

Explanation

**Given info:**

The data represents the sample of scores. The scores are10, 4, 8, 5, and 8.and the population size as 5.

**Calculation:**

The general formula of mean is,

The mean for the sample scores is,

The formula of Sum of squared deviations is,

The sum of squared deviations (SS) of scores is,

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