Math, asked by poojashree0623, 2 months ago

Calculate the mean of the following data
Class intervel
1-3
3-5
5-7
Frequency
18
9
3

Answers

Answered by shivgangadeshmukh999

0

Answer:

I think it's mean is 4.2 because sum of observation is 20 and no.of observation is 7

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