EXAMPLE 4.8 Favorite Vehicle Colors
What is your favorite color for a vehicle? Our preferences can be related to our personality, our moods, or particular objects. Here is a probability model for color preferences.2
| Color | White | Black | Silver | Gray |
| Probability | 0.24 | 0.19 | 0.16 | 0.15 |
| Color | Red | Blue | Brown | Other |
| Probability | 0.10 | 0.07 | 0.05 | 0.04 |
Each probability is between 0 and 1. The probabilities add to 1 because these outcomes together make up the sample space . Our probability model corresponds to selecting a person at random and asking him or her about a favorite color.