That a binomial variable when you're taking seven And then last but not least, what is the probability Your probability, 0.35, and once again if you're taking the test, you should mark that. So you would say that is my n and then you would say Should make it very clear that that right over there is your n, the graders will actually look for that to make sure that you're not The free response section of the AP test, you So in this case, it is seven, and if you're doing it on So the first one is the number of trials. Variable x is equal to four? Now what we're going to see is we can use a function on our TI-84, not named binomc, or binompdf, I should say, binompdf which is short for binomial probabilityĭistribution function, and what you're going to want to do here is use three arguments. To what is the probability that my binomial random If we said the binomial random variable x is equal to number of made free throws from seven, I can say seven trials or seven shots, seven trials with the probability of success is equal to 0.35 for each free throw. What is the probability of making four out of seven free throws? Well this is a classic binomial

So it says here I have a 0.35 probability of making a free throw. You're taking the AP Stats, the Advanced Placement Statistics test, you are allowed to useĪ graphing calculator and so this could actually To answer some questions dealing with binomial random variables and this is useful because if Going to do in this video is use a graphing calculator

Binomial on ti 84 calculator online