Question

The blood group of 20 students of 9th class are recorded as follow:
A, B, O, AB, B, O, AB, A, AB, B
O, A, O, A, AB, B, A, AB, O, B.
Represent the following data in the form of a frequency distribution table with tally marks.
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Answer 1

this can be made on copy

so try this by yourself

BLOOD GROUP|Tally Marks | frequency|

A |. ||| |. 3

B. |. ||/||. l. 5

O l. ||||. l. 4

AB. l. ll/ll l. l. 6