Use this to answer the question.

4 | 0 0 3
3 | 7 8 8 8 9
2 | 3 6 6 8
Erica makes this stem-and-leaf plot. Which number appears most frequently in the dataset she used?

The number 8 appears most frequently in the dataset used by Erica, as it is listed six times in the stem-and-leaf plot.