EXAMPLE 4Recognizing valid discrete probability distributions
Identify which of the following is a valid discrete probability distribution.
1 | 10 | 100 | 1000 | |
0.2 | 0.4 | 0.3 | 0.2 |
−10 | 0 | 10 | 20 | |
0.5 | 0.3 | 0.4 | −0.2 |
Red | Green | Blue | Yellow | |
0.1 | 0.3 | 0.4 | 0.2 |
−5 | 0 | 5 | 10 | |
0.1 | 0.3 | 0.4 | 0.2 |
Solution
NOW YOU CAN DO
Exercises 25–28.