Find out the geometric mean of the following data: C. 0 - 10 10 - 20 - 20-30 30-40 40-50 frequency 10 15 12 8 5 olutions
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Class Interval frequency (fi) Mid value fixi
0-10 12 5 60
10-20 16 15 240
20-30 6 25 150
30-40 7 35 245
40-50 9 45 405
N=∑fi=50 ∑fixi=1100
∴Mean=
∑fi
∑fixi
=
50
1100
=22
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