does anyone know how to do a binomial probability on a ti-83?

[DarkManX]

does anyone know how to do a binomial probability on a ti-83? i know its the normalcdf function but what numbers would i put in??

 

[effowe]

This may help.

 

[aux]

normalcdf refers to the normal distribution cdf. If you need to use normalcdf, then you are interested in the normal approximation of the binomial distribution, use your favorite search engine to find the parameters that you should plug in. Don't forget to check if the assumptions for using normal approximation hold.

For moderate values of n you should be able to compute the binomial distribution values without the need of normal approximation, check effowe's post.

 

[Baked]

ZOMG, cheater! The teacher should have you show proof.

 

[ruffilb]

Originally posted by: effowe
This may help.

This is correct.

 

[DarkManX]

Originally posted by: Baked
ZOMG, cheater! The teacher should have you show proof.

the teacher makes us use the calculator, it is a 6 week summer course

 

[aux]

Originally posted by: Baked
ZOMG, cheater! The teacher should have you show proof.

If he wants to use normal approximation, that's easy (normal distribution table FTW). If he wants to compute the exact binomial values, that's a different story (in most cases)