The blood groups of $30$ students are recorded as follows:
$A, B, O, A, AB, O, A, O, B, A, O, B, A, AB, B, A, AB, B$
$A, A, O, A, AB, B, A, O, B, A, B, A$
Prepare a frequency distribution table for the data.
$A, B, O, A, AB, O, A, O, B, A, O, B, A, AB, B, A, AB, B$
$A, A, O, A, AB, B, A, O, B, A, B, A$
Prepare a frequency distribution table for the data.
To prepare the frequency distribution table,we count the occurrences of each blood group in the given data:
$1$. Count of $A$: $12$
$2$. Count of $B$: $8$
$3$. Count of $AB$: $4$
$4$. Count of $O$: $6$
Total count = $12 + 8 + 4 + 6 = 30$.
$1$. Count of $A$: $12$
$2$. Count of $B$: $8$
$3$. Count of $AB$: $4$
$4$. Count of $O$: $6$
Total count = $12 + 8 + 4 + 6 = 30$.
| Blood Group | No. of students (frequency) |
| $A$ | $12$ |
| $B$ | $8$ |
| $AB$ | $4$ |
| $O$ | $6$ |
| Total | $30$ |
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