Q. put the following data in the form of a frequency distribution with a difference of 5 (exclusive method ) 23 , 24 , 32 , 27 , 28 , 29 , 31 , 20 , 26 , 34 , 35 , 37 , 40 , 43 , 42 , 29 ,36 , 38 , 39 , 22 , 27 , 26 , 32 , 35 ,36 , 26 , 25 , 26 , 28 , 41 .