That is your P. And then last but not least, what is the probability that a binomial variable, when you're taking seven trials with a probability of success of each of them being 0.35, that you have exactly four successes? So now let's get our calculator out and actually do that. All right, so now we have our graphing calculator out. So there's a couple of ways to input this. You could just type it in directly. That could take time. You could do second and this little blue distribution here.