Question

The blood groups of 30 students of Class VI 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 blood group among these students?​

Answer 1

Answer:

A is the correct answer

Answer 2

Given : The blood groups of 30 students of Class VI 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.

To Find : Represent this data in the form of a frequency distribution table.

Which is the most common blood group among these students?​

Solution:

frequency distribution table

A           9             $\setlength{\unitlength}{1cm} \begin{picture}(4,4) \multiput(2, 1)(0.2, 0){4}{\line(0, 1){0.5}} \put(1.8, 1){\line(2, 1){1}} \end{picture}$    $\setlength{\unitlength}{1cm} \begin{picture}(4,4) \multiput(2, 1)(0.2, 0){4}{\line(0, 1){0.5}}\end{picture}$

B            6            $\setlength{\unitlength}{1cm} \begin{picture}(4,4) \multiput(2, 1)(0.2, 0){4}{\line(0, 1){0.5}} \put(1.8, 1){\line(2, 1){1}} \end{picture}$    $\setlength{\unitlength}{1cm} \begin{picture}(4,4) \multiput(2, 1)(0.2, 0){1}{\line(0, 1){0.5}}\end{picture}$

O           12            $\setlength{\unitlength}{1cm} \begin{picture}(4,4) \multiput(2, 1)(0.2, 0){4}{\line(0, 1){0.5}} \put(1.8, 1){\line(2, 1){1}} \end{picture}$ $\setlength{\unitlength}{1cm} \begin{picture}(4,4) \multiput(2, 1)(0.2, 0){4}{\line(0, 1){0.5}} \put(1.8, 1){\line(2, 1){1}} \end{picture}$  $\setlength{\unitlength}{1cm} \begin{picture}(4,4) \multiput(2, 1)(0.2, 0){2}{\line(0, 1){0.5}}\end{picture}$

AB          3               $\setlength{\unitlength}{1cm} \begin{picture}(4,4) \multiput(2, 1)(0.2, 0){3}{\line(0, 1){0.5}}\end{picture}$

Most common blood Group is A  

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