Waiting-Time Distributions: Geometric and Poisson
Free SOA Exam P (Probability) lesson in Univariate Random Variables. 11 min read, ~1,705 words.
Geometric( ): trials until the first success. Trials:,. Failures:, same variance. Geometric survival:. It is memoryless:. Geometric variance exceeds its mean whenever, since; only the Poisson has. Poisson( ): events in a fixed window., and. Solve-for-:, so a given second moment is a quadratic in.
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What this lesson covers
- Content
- Example 1
- Example 2
- Common Mistakes
- Check Your Understanding
- Exam Shortcuts
Learning objectives
- 2a
- 2b
- 2c
- 2d
- 2e
- 2f
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