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jose_cardenas
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Solved!

info about negative binomial

HP Recommended
HP Prime Graphing Calculator
Chrome OS

hello i have some issues about the negative binomial distribution

the help in the calculator doesnt specify what are the parameters that i need in the negbinomial function.

it says that there are a n,k, and x.

 i want to know what values the function negbinomial (n,k,x) need to reproduce the answer thanks

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Maké
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Hi!, @jose_cardenas:

 

You can see, from User Guide, in page 445 of Catlg Menu ... https://support.hp.com/us-en/product/hp-prime-graphing-calculator/5367459/manuals

 

Negative.PNG

 

Syntaxhttps://www.wolframalpha.com/input/?i=negative+binomial+distribution&rawformassumption=%7B%22C%22,+%...

 

https://www.wolframalpha.com/input/?i=negative+binomial+distribution&rawformassumption=%7B%22F%22,+%...

 

Definition.PNG

 

If it has served you, to solve, your problem, you can grant, as Solved. In this way, it can serve other users. Also, you can grant Kudos, if you want to thank, the help provided.

Kind Regards !.
Have a nice day !.
@Maké (Technical Advisor Premium - HP Program Top Contributor).
Provost in HP Spanish Public Forum ... https://h30467.www3.hp.com/
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Jan_D
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@jose_cardenas wrote:

hello i have some issues about the negative binomial distribution

the help in the calculator doesnt specify what are the parameters that i need in the negbinomial function.

it says that there are a n,k, and x.

 i want to know what values the function negbinomial (n,k,x) need to reproduce the answer thanks


 

The Help information is insufficient here.

 

n = the number of successes, including the last one.

k = the number of failures

x = probability that an individual trial is a succes.

 

So the total number of trials is n+k.

 

Negbinomial (n,k,x) gives the probability of observing the nth success at the (n+k)th trial.

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