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 between ...

The interquartile mean is a measure of central tendency. While all values in a data set are used to calculate the mean, only the interquartile range -- the central portion of a data set -- is used to ...

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 understand ...

The range of a set of numbers is the largest value, subtract the smallest value. \(range = largest~number - smallest~number\) The mass of 7 babies are as follows: 2.5 kg, 3.1 kg, 3.4 kg, 3.5 kg, 3.5 ...