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What does interquartile range mean?

Bethany Evans

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Ashley Howard on August 29, 2018

The interquartile range is the upper quartile (75th percentile) minus (-) the lower percentile (75th percentile). The interquartile range uses 50% of the data. It is a measure of the "central tendency" such as the standard deviation. A small interquartile range means that most of the values are close to each other.


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