Chapter 4, Problem 1P

### Essentials of Statistics for the B...

8th Edition
Frederick J Gravetter + 1 other
ISBN: 9781133956570

Chapter
Section

### Essentials of Statistics for the B...

8th Edition
Frederick J Gravetter + 1 other
ISBN: 9781133956570
Textbook Problem

# In words, explain what is measured by each of the following:a. SS b. Variance c. Standard deviation

To determine

To explain: The measures of SS, variance and standard deviation.

The SS, variance and standard deviation are measured by the average distance from the mean.

Explanation

Justification:

The SS, variance and standard deviation are commonly used techniques for measures of variability. All of these measures are based on the similar idea that each score can be described in terms of its deviation or distance from the mean.

The variance is the mean of squared deviations and it measures the average square distance from the mean.

The standard deviation or standard distance from the mean is the square root of variance and it measures the standard or average distance from the mean.

Here SS represents square root of the variance.

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