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A Percentile Rank of _____ Indicates Performance at the Median

question 29

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A percentile rank of _____ indicates performance at the median of the reference group.


Definitions:

Probability Density Function

A function that describes the likelihood of a continuous random variable falling within a particular range of values.

Total Area

In statistical terms, often refers to the entirety of the area under a probability distribution curve, which equals 1 or 100%.

Sampling Distribution

The probability distribution of a given statistic based on a random sample, used to make inferences about a population.

Nonnormal Population

A population distribution that does not fit the normal (bell-shaped) distribution pattern, often having skewness or kurtosis.

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