The interquartile range (IQR) is a statistical measure of the middle values of a sample data set that is separated into four equal parts. This middle-value grouping can provide a median range ...

The interquartile range is another measure of spread, except that it has the added advantage of not being affected by large outlying values. In order to calculate this value we must first ...

text{biggest number} - \text{smallest number} = 4.1 - 2.5 = 1.6\) The range of weights is 1.6 kg. The interquartile range shows the range in values of the central 50% of the data. To find the ...