Question 99
Read the data and answer the given questions
What average number of children per house?
Solution
Total number of houses = 3 + 13 + 18 + 3 = 37
Total children = $$(0 \times 3) + (1 \times 13) + (2 \times 18) + (3 \times 3)$$
= 13 + 36 + 9 = 58
$$\therefore$$ Average number of children per house = $$\frac{58}{37} = 1.57$$
=> Ans - (C)
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