Q. The donations made by 30 houses in a locality are as follows:
42, 35, 28, 12, 14, 16, 47, 50, 52, 27,
34, 42, 26, 28, 36, 15, 64, 65, 38, 40,
22, 24, 29, 31, 39, 48, 53, 62, 23, 43.
Construct a grouped frequency distribution with the class size 10.