22. Which set of data of temperatures has the largest dispersion as
measured by its interquartile range?
(1) 15, 17, 19, 21, 21, 22, 28
(2) 21, 23, 36, 37, 44, 48, 50
(3) 10, 19, 22, 23, 23, 29, 44
(4) 42, 47, 49, 50, 52, 59, 60