Question 99
Read the table and answer the questions
What is the average number of children per house?
Solution
Total number of houses = 6 + 15 + 14 + 7 = 42
Total children = $$(0 \times 6) + (1 \times 15) + (2 \times 14) + (3 \times 7)$$
= 15 + 28 + 21 = 64
$$\therefore$$ Average number of children per house = $$\frac{64}{42} = 1.52$$
=> Ans - (A)
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