Study the given table and answer the question that follows.
| Number of children | Number of families |
| 0 | 4 |
| 1 | 22 |
| 2 | 15 |
| 3 | 6 |
| 4 | 2 |
The average number of children per family is:
Show answer & explanation
Correct answer: B
Explanation
The correct answer is Option 2 i.e. 1.59.
Average = Sum of observations/Number of observations
Average = (0 × 4 + 1 × 22 + 2 × 15 + 3 × 6 + 4 × 2)/(4 + 22 + 15 + 6 + 2)
(0 + 22 + 30 + 18 + 8)/49
= 78/49 = 1.59