Answer:
5 and 7
Step-by-step explanation:
The mode of a set of numbers is the number that appears the most frequent. So, let's see how many times each number shows up.
5 shows up 3 times.
7 shows up 3 times.
8 shows up 1 time.
11 shows up 2 times.
13 shows up 1 time.
So, our mode is both 5 and 7. They both show up 3 times. This is called a bimodal set, where there are two modes.
I hope this helps!