The following table shows the number of children in each house of a society. Number of Children Number of Houses 0 5 1 14 2 10 3 3 What is the average number of children per house?

SSC CHSL 9 Jan 2017 Shift 3 Paper

Question : 74 of 100

Marks: +1, -0

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

Number of Children	Number of Houses
0	5
1	14
2	10
3	3

What is the average number of children per house?

1.34
1.59
1.84
1.08

Validate

Solution:

Total number of houses = 5 + 14 + 10 + 3 = 32
Total children = (0 × 5) + (1 × 14) + (2 × 10) + (3 × 3)
= 14 + 20 + 9 = 43
∴ Average number of children per house

=43/32=1.34

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