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 = 3 + 10 + 12 + 3 = 28

Total children = $$(0 \times 3) + (1 \times 10) + (2 \times 12) + (3 \times 3)$$

= 10 + 24 + 9 = 43

$$\therefore$$ Average number of children per house = $$\frac{43}{28} \approx 1.54$$

=> Ans - (B)

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