Which of the Following Criteria Should Be Considered When Selecting

question 13

Multiple Choice

Which of the following criteria should be considered when selecting an identifier?

• A) Choose an identifier that is not stable.
• B) Choose a null identifier.
• C) Choose an identifier that doesn't have large composite attributes.
• D) Choose the most complex identifier possible.

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Definitions:

Plug-in Principle

A statistical method that involves estimating unknown parameters by directly substituting sample statistics (from collected data) into formulas in place of population parameters.

Population Mean

The average of all the values in a population, serving as a measure of central tendency.

Sample Mean

The average value calculated from a sample of data points, used as an estimate of the population mean.

Sample Median

The middle value of a sample data set arranged in ascending or descending order, used as a measure of central tendency.