"A Set of Items All Assumed to Be of Approximately

question 7

Multiple Choice

"A set of items all assumed to be of approximately equal importance in measuring a single underlying concept that are then combined to yield a single overall score on the underlying concept" defines what the text calls a(n)

• A) dimension
• B) index
• C) numeric variable
• D) real variable

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Definitions:

Average hourly income

The mean income earned by an individual per hour of work.

Standard deviation

A metric that calculates the degree of spread or variability within a data set.

Standard error

A measure of the statistical accuracy of an estimate, indicating the variability of sample means around the population mean.

Standard deviation of population

A measure that quantifies the variation or spread of a set of data points in a population.