1. (20 points) Quartiles and Boxplots: (a) (10 points) What is the interquartile range for the following set of numbers? 4, 5, 6, 8, 9, 11, 13, 16, 16, 18, 20, 21, 25, 30, 31, 33, 36, 37, 40, 41 (b) (10 points) For the information shown in the above box and whisker plot, what is the range and what is the interquartile range? 3 4 567 8 9 10 11 12 13 14 15 16 17 18