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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" just like the standard deviation.
A small interquartile range means that most of the values lie close to each other.
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What is interquartile range?
An interquartile range is a measurement of dispersion about the mean. The lower the IQR, the more the data is bunched up around the mean. It's calculated by subtracting Q1 from Q3.
Why is the interquartile range a more appropriate measure for spread than the range?
the interquartile range is not sensitive to outliers.
What are the common measures of dispersion?
Range, standard deviation, variance, root mean square, interquartile range
What is unaffected by outliers?
interquartile range
How do you find the interquartile range in a set of data?
how do you find the interquartile range of this data
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