Question

The blood groups of 30 students of class IX 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. Which is the most common and which is the rarest, blood group among these students ?​

Answer 1

Answer:

Blood groups A B AB O

Frequency (f) 10 9 2 15

Most common blood group is O

Rarest blood group is AB

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Answer 2

Answer:

frequency of data will come in graph chart or