Question:
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, O, AB, B, A, O, B, A, B, O
Represent this data in the form of a frequency distribution table .Find out which is the most common and which is the most rarest blood group among these students.
Solution:
Here 9 students have blood group A, 6 as B, 3 as AB and 12 as O
So the table representing the data is as follows:
As 12 students have their blood group O and 3 students have their blood group as AB. Therefore the most common blood group is O and the rarest blood group is AB.
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