Correct answer: None of these
Explanation:
The mode of a data set is the value that appears most frequently. In the given data set: \[ 1, 2, 3, 8, 10, 11, 16 \] all the numbers appear only once, meaning there is no repetition of any value. Therefore, this data set does not have a mode. Hence, the mode of the data set is None of these.
| Age Group | 0-2 | 2-4 | 4-6 | 6-8 | 8-10 |
| Number of children | 5 | 7 | 3 | 2 | 2 |