Mean, Median and Mode · Example 2

In, we created a frequency distribution of the number of siblings of conflict resolution class attendees.
$$\begin{array}{cc}\text{Number of Siblings}& \text{Frequency}\\ \text{0}& \text{5}\\ \text{1}& \text{13}\\ \text{2}& \text{6}\\ \text{3}& \text{3}\\ \text{4}& \text{2}\\ \text{5}& \text{1}\end{array}$$

What is the mode of the number of siblings?

OpenStax, Contemporary Mathematics · §8.3 Mean, Median and Mode · Example 2