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The blood groups of 30 students of Class...

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, O, O, A, AB, O, A, A, O, AB, AB, B, A, O, B, A, B, O.`
What is the frequency of blood group `AB`?

A

`3`

B

`4`

C

`2`

D

`5`

Text Solution

Verified by Experts

The correct Answer is:
A
(i) Frequency distribution table:

(ii) Clearly, the blood group `O` is most common and `AB` is the rarest.
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