Data Analysis, SM-Bank 052 MC

The stem plot below displays the average number of decayed teeth in 12-year-old children from countries.

Based on this stem plot, the distribution of the average number of decayed teeth for these countries is best described as

1. positively skewed with a median of 15 decayed teeth and a range of 45
2. approximately symmetric with a median of 1.5 decayed teeth and a range of 4.5
3. negatively skewed with a median of 1.5 decayed teeth and a range of 4.5
4. positively skewed with a median of 1.5 decayed teeth and a range of 4.5