Question

which of the dot plots shows a symmetric distribution?

Explanation:

Step1: Recall symmetric distribution

A symmetric distribution has mirror - image halves.

Step2: Examine each dot - plot

Check for symmetry around a central value.
For option A: The distribution is not symmetric as the number of dots on either side of a central value is not balanced.
For option B: The distribution is not symmetric as the left - hand side and right - hand side do not mirror each other.
For option C: The distribution is symmetric. The number of dots on either side of the central values (around 14 - 15) is approximately the same.
For option D: The distribution is not symmetric as the left and right sides have different patterns of dot placement.

Answer:

C