help on probabilty  binomial

11202017, 10:07 PM
(This post was last modified: 11202017 10:19 PM by salvomic.)
Post: #2




RE: help on probabilty  binomial
(11202017 09:46 PM)primer Wrote: Dears, I think you should use BINOMIAL_CDF(n, p,k,[k2]) that "returns the probability of k or fewer successes out of n trials..." optional k2 returns the probability for the two kvalues, that is the probability of between k and k2... Salvo EDIT: most distribution in the Prime and CAS distinguish between Density and Cumulative values (and also Inverse). i.e.: 100 trials, prob. ½ (50%) k=50 BINOMIAL(100,1/2,50) = 7.958E2 (only upon 50) BINOMIAL_CDF(100,1/2,50) = 0.539794 (cumulative, from 0 to 50) BINOMIAL_CDF(100,1/2,50)BINOMIAL(100,1/2,50) = 0.4602053... that the probability to have 49 successes on 100 trials, or BINOMIAL_CDF(100,1/2,49) If I well understand your needs... ∫aL√0mic (IT9CLU) :: HP Prime 50g 41CX 71b 42s 39s 35s 12C 15C  DM42, DM41X  WP34s Prime Soft. Lib 

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Messages In This Thread 
help on probabilty  binomial  primer  11202017, 09:46 PM
RE: help on probabilty  binomial  salvomic  11202017 10:07 PM
RE: help on probabilty  binomial  primer  11202017, 10:35 PM
RE: help on probabilty  binomial  salvomic  11202017, 10:42 PM
RE: help on probabilty  binomial  primer  11202017, 11:26 PM

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