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.

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 = $12 + 8 + 4 + 6 = 30$.

Blood Group	No. of students (frequency)
$A$	$12$
$B$	$8$
$AB$	$4$
$O$	$6$
Total	$30$