Chapter 4.3, Problem 1LCA

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8th Edition

Frederick J Gravetter + 1 other

ISBN: 9781133956570

Textbook Problem

Find the sum of the squared deviations, *SS,* for each of the following populations. Note that the definitional formula works well for one population but the computational formula is better for the other.

Population 1: | 3 | 1 | 5 | 1 | ||

Population 2: | 6 | 4 | 2 | 0 | 9 | 3 |

To determine

**To find:** The sum of squared deviations, variance and standard deviation for the population of scores.

Explanation

**Given info:**

The information having two populations: They are:

Population 1: 3, 1, 5, and 1.

Population 2: 6, 4, 2, 0, 9, and 3

**Calculation:**

The formula of mean is,

The computational formula of sum of squared deviations is,

The definitional formula for sum of squared deviations is,

*Population 1:*

The mean of scores is,

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

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