The Fact That the Sum of the Differences of Scores

question 79

Multiple Choice

The fact that the sum of the differences of scores from their mean is zero best illustrates that

• A) the mean is at the center of a distribution.
• B) the mean is the "balance point" of a distribution.
• C) the mean is equal to zero.
• D) the mean can never be negative.

Understand the role of information and data context within organizational knowledge.

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Definitions:

Absolute Value

The non-negative value of a number without regard to its sign; for example, the absolute value of both -5 and 5 is 5.

Variance

A statistical measure that represents the degree of spread or variability of a data set, by calculating the average of the squared differences from the mean.

Standard Deviation

A measure of the dispersion or variability within a dataset, indicating how much the individual data points deviate from the mean.

Variance

A measure of variability that describes the spread of a set of data points or the degree of dispersion around the mean.