Question

The blood groups of 30 students of a
class are recorded as under:
The blood group is the least and most
common among these students are -
A, B, O, O, AB, O, A, O, A, B, O, B, A, O, O,
A, AB, O, A, A, O, O, AB, B, A, O, B, A, B,
0. *
​

Answer 1

Answer:

least common AB

most common O