Find out the missing frequency in Arithmetic Mean
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Mean =summation fixi/summation fi
48.78=1455+45f/29+f
48.78×29+f=1455+45f
1414.62+48.78f=1455+45f
48.78f-45f=1455-1414.62
3.78f=40.38
f=40.38/3.78
abhi95956:
Sir mean?
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