Question 74

The following table shows the number of children in each house of the society

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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