A survey categorizes family cars by whether they use regular gasoline or premium gasoline, and whether they are SUVs or sedans. The results are shown below.
| Uses regular gasoline | Uses premium gasoline | |
|---|---|---|
| SUV | 15 | 6 |
| Sedan | 18 | 11 |
If one car from the survey is chosen at random, what is the probability that it is a sedan that uses premium gasoline?
