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 = 4 + 13 + 10 + 5 = 32

Total children = $$(0 \times 4) + (1 \times 13) + (2 \times 10) + (3 \times 5)$$

= 13 + 20 + 15 = 48

$$\therefore$$ Average number of children per house = $$\frac{48}{32} = 1.5$$

=> Ans - (C)

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