Advanced Topic: Σ(X-GM)²

question 9

Multiple Choice

Advanced topic: Σ(X-GM) ²

• A)equals the sum of squared deviations of scores from their group's mean.
• B)ignores the group a score is in.
• C)is always smaller than Σ(X-M)².
• D)is used to determine the grand mean.

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Definitions:

Means

The average value in a data set, calculated as the sum of all values divided by the number of values.

Widely Dispersed

Describes data that is spread out over a large range, showing significant variability within the dataset.

Shape Of The Distribution

The form or appearance of the graph of a distribution, which can include features like skewness and kurtosis.

Interval Variables

A type of quantitative variable that represents numeric data with meaningful intervals but without a true zero point.