Question 1
The blood groups of 30 students are recorded as follows
A, B, O, A, AB, O, A, B, A, O, B, A, AB, B, A, AB, B, A, A, O, A, AB, B, A, O, B, A, B, A
Prepare a frequency distribution table for the data.

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Solution

The number of students who have a certain type of blood group is called the frequency of those blood groups. Frequency distribution table for the given data is given below.

$\begin{matrix} B l o o d g r o u p & T a l l y m a r k s & N u m b e r o f s t u d e n t s (F r e q u e n c y) A & / | | | | / | | | | | | & 12 B & / | | | | | | | & 8 A B & | | | | & 4 O & / | | | | | & 6 T o t a l & 30 \end{matrix}$

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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.
By representing this data in a frequency distribution table, find out the most common and the rarest blood group among these students.

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$A, B, O, O, A B, O, A, O, B, A, O, B, A, O, O,$
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Question 1
The blood groups of 30 students of Class VIII are recoded as follows:
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Question 1 The blood groups of 30 students are recorded as follows A, B, O, A, AB, O, A, B, A, O, B, A, AB, B, A, AB, B, A, A, O, A, AB, B, A, O, B, A, B, A Prepare a frequency distribution table for the data.

The number of students who have a certain type of blood group is called the frequency of those blood groups. Frequency distribution table for the given data is given below. Blood groupTally marksNumber of students(Frequency)A/||||/|||| ||12B/|||| |||8AB||||4O/|||| |6Total30

Question 1
The blood groups of 30 students are recorded as follows
A, B, O, A, AB, O, A, B, A, O, B, A, AB, B, A, AB, B, A, A, O, A, AB, B, A, O, B, A, B, A
Prepare a frequency distribution table for the data.