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 02.10 am
Total number of houses = 7 + 9 + 20 + 3 = 39 Total children = $$(0 imes 7) + (1 imes 9) + (2 imes 20) + (3 imes 3)$$ = 9 + 40 + 9 = 58 $$ herefore$$ Average number of children per house = $$frac{58}{39} = 1.49$$ => Ans - (D)
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