Data and Statistics Vocabulary

Front

Mean

Back

The average of a set of numbers, calculated by dividing the sum of the values by the number of values.

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Median

Back

The middle value in a list of numbers, which separates the higher half from the lower half.

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Mean Absolute Deviation

Back

The average of the absolute differences between each data point and the mean of the data set.

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Quartile

Back

Values that divide a data set into four equal parts.

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Interquartile Range

Back

The difference between the third quartile and the first quartile, representing the range of the middle 50% of the data.

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Range

Back

The difference between the maximum and minimum values in a data set.

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Five Number Summary

Back

A summary of a data set that includes the minimum, first quartile, median (second quartile), third quartile, and maximum.

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Minimum

Back

The smallest value in a data set.

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Maximum

Back

The largest value in a data set.

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First Quartile

Back

The value below which 25% of the data falls, also known as Q1.