Question

- 38 1. The blood groups of 30 students of Class VIII are recorded as follows: A, B, O, O, AB, O, A, O, B, A, O, B, A, 0, 0, A. AB, O, A, A, O, O, 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? -355 co once to their place of work were​

Answer 1

Answer:

• The most common (most frequently occurring) blood group is ‘O’.
• The rarest blood group (least frequently occurring) is ‘AB.’
• Thus, the most common blood group is ‘O’ and the rarest blood group is ‘AB.’

Answer 2

Answer:

Blood group O is most common as it has highest frequency, i.e., 12. 

Blood group AB is rarest as it has lowest frequency, i.e., 3.