If the mean of the following frequency ...

CBSE Class 10 Math 2022 Outside Delhi Set 2 Paper (Term II)

Question : 3 of 5

Marks: +1, -0

If the mean of the following frequency distribution is 18 , then find the missing frequency '

f

Class	$11-13$	$13-15$	$15-17$	$17-19$	$19-21$	$21-23$	$23-25$
Frequency	3	6	9	13	$f$	5	4

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