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Homework answers / question archive / Consider the following discrete probability distribution
Consider the following discrete probability distribution.
| x | -10 | 0 | 10 | 20 |
|---|---|---|---|---|
| P(X = x) | 0.35 | 0.10 | 0.15 | 0.40 |
What is the probability that X is greater than 0?
- 0.55
- 0.65
- 0.10
- 0.35
Answer: 0.55
There are only two possible outcomes where X is greater than 0. These occur when X is 10 or 20 with respective probabilities 0.15 and 0.4. This means the probability of X being greater than 0 is 0.15+0.4=0.55.
