The data shows the number of grams of fat found in 9 different health bars.12, 14, 16, 16.5, 11, 18, 18, 14, 20 What is the IQR (interquartile range) for the data?
9
5
16
18
From the given data set, the get the IQR we rearrange the set in ascending order first. 11,12,14,14,16,16.5,18,18,20 the first quartile =14 The upper quartile=18 then IQR=Q1-Q3 =18-14=4
