## Geometry: Common Core (15th Edition)

$\frac{9}{65}$
To calculate probability, we need to divide the number of chances for a certain outcome to occur by the total number of outcomes. In this case, there are $9$ cars that are black, and $65$ in total. When we divide $9$ by $65$, we get $\frac{9}{65}$, which is the experimental probability a car is black, or $P(\text{black})$.