interquartile range

Noun

Meaning

interquartile range (plural interquartile ranges)

(statistics) The difference between the first and third quartiles; a robust measure of sample dispersion.

Synonyms

Examples

After determining the first and third quartiles and the interquartile range as outlined above, then fences are calculated using the following formula: : : where Q 1 and Q 3 are the first and third quartiles, respectively. Source: Internet

Calculation In calculation of the IQM, only the data in the second and third quartiles is used (as in the interquartile range ), and the lowest 25% and the highest 25% of the scores are discarded. Source: Internet

The IQM can be equal to any value between the first and third quartiles, depending on all the observations in the interquartile range. Source: Internet

The interquartile range is often used to find outliers in data. Source: Internet

The purple box shows the middle portion of the data, known in statistical lingo as the Interquartile Range. Source: Internet

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