A Number of U

question 209

Multiple Choice

A number of U.S.-based retail chains have begun using check-out terminals that do not use clerks.This is an example of what level of service?

• A)full-service
• B)self-service
• C)limited-service
• D)customized-service
• E)functional-service

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Definitions:

Inclusive Range

The difference between the highest and lowest values in a data set, taking into account both extreme values.

Scores

Quantitative values assigned to individuals or objects for the purpose of comparison or measurement.

Variance

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

Standard Deviation

A measure of the amount of variation or dispersion of a set of values, indicating how spread out the data points are.