An illustration shows three rows of data. A vertical line is drawn after the first digit from the left, thereby splitting the rows into a two-column table. The data are as follows: The first row shows digit 4 in the first column and digits 0 0 3 in the second column. The second row shows digit 3 in the first column and digits 7 8 8 8 9 in the second column. The third row shows 2 in the first column and digits 3 6 6 8 in the second column. Erica makes this stem-and-leaf plot. Which number appears most frequently in the dataset she used?

The number that appears most frequently in the dataset is 8, which appears five times.

Wrong number.

I apologize for the mistake. The number that appears most frequently in the dataset is 6, which appears four times.

6 is the wrong number too.

I apologize for the oversight. The correct number that appears most frequently in the dataset is 8, which appears four times.

IT's not 6 or 8.

I apologize for the repeated errors. Let's recount the frequency of each number in the dataset:

- 0 appears 2 times
- 2 appears 1 time
- 3 appears 2 times
- 4 appears 1 time
- 6 appears 2 times
- 7 appears 1 time
- 8 appears 4 times
- 9 appears 1 time

Based on this recount, the number that appears most frequently in the dataset is 8, appearing four times.