A police officer monitored the speed (mph) of the cars in a particular traffic area.
Prepare a frequency distribution for this data using 7 classes.
36, 21, 27, 24, 54, 28 ,36, 43,
22, 29, 37, 40, 26, 25, 38, 23,
44, 30, 26, 39, 37, 40, 38, 36,
41, 45, 52, 42, 43, 42, 48, 50, 53