CASTI-89 TITANIUM (STATS/LIST EDITOR APP) · CALC89
poissPdf(
Returns the Poisson probability of exactly a given count.
Syntax
poissPdf(λ, XVal)
- Group
- Distributions
- Arguments
- Takes the mean λ and the count.
- Availability
- Pro feature in Calc89
- Origin
- On the TI-89 Titanium this command comes with the preinstalled Stats/List Editor app
Example
| Input | Result |
|---|---|
| poissPdf(2,1) | 2/ℯ2 |
Typing poissPdf(2,1) on the home screen and pressing ENTER returns 2/ℯ2.
Related commands
- tCdf(Returns the Student t distribution probability between two bounds.
- tPdf(Returns the probability density of the Student t distribution at a value.
- binomCdf(Returns a cumulative binomial probability, the chance of a number of successes within a range.
- binomPdf(Returns the binomial probability of exactly a given number of successes.
- chi2Cdf(Returns the χ² distribution probability between two bounds.
- chi2Pdf(Returns the probability density of the χ² distribution at a value.
- FCdf(Returns the F distribution probability between two bounds.
- FPdf(Returns the probability density of the F distribution at a value.