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. \(range = largest~number - smallest~number\) 7 babies are weighed and weigh the following amounts: 2.5 kg, 3.1 kg, 3.4 ...