Question 74
The following table shows the number of children in each house of a society
What is the average number of children per house
Solution
Total number of houses = 7 + 9 + 20 + 3 = 39
Total children = $$(0 \times 7) + (1 \times 9) + (2 \times 20) + (3 \times 3)$$
= 9 + 40 + 9 = 58
$$\therefore$$ Average number of children per house = $$\frac{58}{39} = 1.49$$
=> Ans - (D)
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