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 rarest blood group among these students

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Solution

Frequency distribution table is given below:

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Question 1
The blood groups of 30 students of Class VIII are recoded 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 frequency distribution table. Which is the most common, and which is the rarest, blood group among these students?

The blood groups of $30$ students of Class VIII are recorded as follows:
$A, B, O, O, A B, O, A, O, B, A, O, B, A, O, O,$
$A, A B, O, A, A, O, O, A B, B, A, O, B, A, B, O$ .
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?

Q. The blood groups of 30 students of a class are recorded as under:
A, B, O, O, AB, O, A, O, A, B, O, B, A, O, O, A, AB, O, A, A, O, O, AB, B, A, O, B, A, B, O.
(i) Represent this data in the form of a frequency distribution table.
(ii) Find out which is the most common and which is the rarest blood group among these students.

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