1. The following table shows the number of children in each house of a society.What is the average number of children per house?
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By: anil on 05 May 2019 02.17 am
Total number of houses = 7 + 11 + 15 + 5 = 38 Total children = $$(0 imes 7) + (1 imes 11) + (2 imes 15) + (3 imes 5)$$ = 11 + 30 + 15 = 56 $$ herefore$$ Average number of children per house = $$frac{56}{38} = 1.47$$ => Ans - (C)
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