Write the formula to find Mean' of a grouped data in direct method and
explain its terms ?
Answers
Answered by
3
£fixi/£fi
hope it helps
Answered by
6
mean= A+fidi ×n/fi
A assumed mean
fi is the frequency of the given data
N is total no of frequency
di = Xi - A
Xi=sum of class divided by 2
observation table
class | fi | Xi | di | fidi |
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