(a) The mean of the following frequency distribution is 25. ...

CBSE Class 10 Math 2022 Delhi Set 1 Paper (Term II)

Question : 9 of 14

Marks: +1, -0

(a) The mean of the following frequency distribution is 25. Find the value of f.

Class :	0−10	10−20	20−30	30−40	40−50
Frequency :	5	18	15	f	6

OR
(b) Find the mean of the following data using assumed mean method:

Class :	0−5	5−10	10−15	15−20	20−25
Frequency :	8	7	10	13	12

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