Probability theory
Poisson standard deviation
Poisson standard deviation measures the typical distance of values from their mean in the original data units.
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σ=√λ
- 01Given
- 02Calculation
- 03Answer
What it means
Poisson standard deviation measures the typical distance of values from their mean in the original data units.
How it works and where it is used
Use this calculation for estimating rare-event counts over a time interval, area, or volume.