Simplify. -

question 320

Multiple Choice

Simplify.
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Definitions:

Variance

A measure of the dispersion or spread of a set of data points, calculated as the average squared deviation from the mean.

Confidence Interval

A range of values, derived from sample statistics, that is likely to contain the value of an unknown population parameter with a specified degree of confidence.

Encyclopedia Salespersons

Individuals whose job is to sell printed or digital encyclopedias, often door-to-door or via direct sales techniques.

Standard Deviation

A statistical measure of the dispersion or variability of a set of data points, indicating how spread out the data points are from the mean.