Ms. Smith is a teacher who plays a review game with her class. The game involved writing each students name and picking students at random.

Here is the makeup of her class :
Grade :
| 9th | 10th | 11th | 12th |

# of students :
| 3 | 11 | 13 | 4 |

Suppose that Ms. Smith picks name, doesn’t replace it, and picks a name again. What is the probability that neither student selected are 10th graders?