Question 99
Read the data and answer the given questions
What is the average children per house?
Solution
Total number of houses = 7 + 17 + 13 + 3 = 40
Total children = $$(0 \times 7) + (1 \times 17) + (2 \times 13) + (3 \times 3)$$
= 17 + 26 + 9 = 52
$$\therefore$$ Average number of children per house = $$\frac{52}{40} = 1.3$$
=> Ans - (B)
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