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What is the Interquartile Range (IQR) metric?

April 26, 2017interquartile metric range

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What is the Interquartile Range (IQR) metric?

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The interquartile range is a measure of noise or spread. It is the difference between the 75th percentile and the 25th percentile (Q1). Since the IQR represents the central 50 percent of the data, it is not affected by outliers or extreme values and is therefore a robust measure of noise.