The marks obtained by $15$ students of a class are given below. Find the modal marks.
$42, 45, 47, 49, 52, 65, 65, 71, 71, 72, 75, 82, 72, 47, 72$

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Solution

Arranging the given marks in ascending order
$42, 45, 47, 47, 49, 52, 65, 65, 71, 71, 72, 72, 72, 75, 82$
In the given data, frequency of $72$ is the highest $= 3$
Therefore, modal marks $= 72$

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