Determine the mean using direct method — task. Maths CBSE Mentoring Hindi, Class 10 Mentoring.

Class	\(0 - 10\)	\(10 - 20\)	\(20 - 30\)	\(30 - 40\)
Frequency	7	7	7	4

The mean of the given data is

20.2
18.2
17.2
19.2

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