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
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