A Percentile Is

question 39

Multiple Choice

A percentile is

• A) a percentile point.
• B) a value between -1 and +1.
• C) a raw score multiplied times 100.
• D) only used with ungrouped data.

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Definitions:

Probability

A measure of the likelihood that an event will occur, expressed as a number between 0 and 1.

Standard Deviations

A measure of the amount of variation or dispersion of a set of values from the mean.

Z Score

A statistical measurement that describes a value's relationship to the mean of a group of values, expressed in standard deviations.

Mean

The arithmetic average of a set of numbers, calculated by dividing the sum of the numbers by the count of numbers in the set.