Binompdf & Binomcdf (TI83/84 calculator)

Objective:
-Compute probabilities of binomial experiments with the TI-83/84 calculator

Category:

People & Blogs

Tags:

• M2U00007

[MoMMessEh]

You can do the regular thing, 1-binomcdf(100,.8,79) or if you have already computed binomcdf(100,.8,79), you enter 1 then shift to find the ans key and enter that.

[MoMMessEh]

pdf stands for probability distribution function and calculates individual probabilities.

Example: binompdf(3,.5) gives .125 .375 .375 .125

These are the probabilities of 0,1,2 or 3 successes with n=3 and p=0.5.

cdf stands for cumulative probabilities.

Example: binomcdf(3,.5,2) Gives the probability that we have 0, 1, or 2 successes added together, so we get .125 +.375 + .375 = .875

[criscris73]

that is great thanks! One question, I get results in this format: 99.300211481e-3 but would like to have results in decimal like you, what setting is this please? Thanks

[MoMMessEh]

@criscris73 Your answer is in decimal form using scientific notation. The e-3 on the end of the number means to shift the decimal point 3 places to the left so 99.300211481 e-3 becomes 0.099300211481.

[MoMMessEh]

@criscris73 to get a true decimal presentation, hit the mode button and highlight normal and enter. That will get you in normal decimal load.

[isard99]

I whish I had that teacher...

Even it it means math in english and not in german but that worth it xD

[MoMMessEh]

@isard99

Danke isard99. Herr Professor Messenger ist der Lehrer.  Ich bin Professor Ehlers und wir beide arbeiten so das Mathematik leicht und erfreulich ist.

[johnricarte33]

for some reason i thought this was hilarious. but you got the job done. thank you sir.

[dduble07]

Thanks man, saved my grade for tomorrow.

[HenkieRS]

Thanks so much ! one video explains this better than my bs school book.

[ThePhilmeeks]

Ah at last someone who can teach math in english!

[appleormac]

Thank you! I will give you money when I get a well paying job!

[shannon32121]

You are a life saver!!!! I love you!

[ronaldrayers]

How did you input 1-ans?

[TheNorthEestern]

Awesomeness.

[uberrrich]

wowwww, put so simply! thank you! i have a test in 20 minutes lol