Question 74
The following table shows the number of children in each house of the societyÂ
What is the average number of children per house?
Solution
Total number of houses = 6 + 16 + 15 + 3 = 40
Total children = $$(0 \times 6) + (1 \times 16) + (2 \times 15) + (3 \times 3)$$
= 16 + 30 + 9 = 55
$$\therefore$$ Average number of children per house = $$\frac{55}{40} = 1.38$$
=> Ans - (A)
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