245 197205
EXERCISE 14.2
1. The blood groups of 30 students of Class VIII are recorded as follows:
A, B,0,0, AB, O, A, O, B,A, O,B, A, 0, 0,
A, AB, O, A, A, 0, 0, AB, B, A, O, B,A, B,O.
Represent this data in the form of a frequency distribution table. Which is the most
common, and which is the rarest, blood group among these students?​