<h2>
Answer:</h2>
The example of a statistical question is:
Question 4: How old are the students in math class?
<h2>
Step-by-step explanation:</h2>
<u>Statistical question--</u>
A statistical question is one which is based over the data which is sampled or collected such that there is a variability in the data.
Here the first three questions i.e.
Question 1 How old am I?
Question 2 How old is the teacher?
Question 3 How old will I be after my next birthday?
are not based over the sample these are based over a individual and not over the data or population. Hence, they are invalid.
The statistical question is:
D) Question: 4