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what does iqr mean in math terms. Quartiles divide a rank-ordered data set into four equal parts. When a data set has outliers variability is often summarized by a statistic called the interquartile range which is the difference between the first and third quartiles.
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It is used for the statistical calculations of set of data which is divided into 4 equal parts. The difference between the first quartile and third quartile of a set of data. From the least to the greatest.
And they are denoted by Q1 Q2 and Q3 respectively.
The interquartile range abbreviated IQR is just the width of the box in the box-and-whisker plot. That is IQR Q3 Q1. Statistics assumes that your values are clustered around some central value. It is used for the statistical calculations of set of data which is divided into 4 equal parts.
