CASTI-89 TITANIUM (STATS/LIST EDITOR APP) · CALC89
poissCdf(
Returns the cumulative Poisson probability for a range of counts.
Syntax
poissCdf(λ[, LowBound], UpBound)
- Group
- Distributions
- Arguments
- Takes the mean λ, an optional lower bound and the upper bound.
- Availability
- Pro feature in Calc89
- Origin
- On the TI-89 Titanium this command comes with the preinstalled Stats/List Editor app
Example
| Input | Result |
|---|---|
| poissCdf(2,0,3) | 19/(3·ℯ2) |
Typing poissCdf(2,0,3) on the home screen and pressing ENTER returns 19/(3·ℯ2).
Related commands
- poissPdf(Returns the Poisson probability of exactly a given count.
- 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.