Seven moments where it was true that a car passed, then we would have a total of seven cars pass in the hour. So just finishing up with our binomial distribution, n moments choose k successes times the probability of success. What's the probability of success? We said if this is, so this would be n, what's p equal to? p is equal to lambda divided by n, right? n times p is lambda, so let me just write that down. p is equal to lambda divided by n. I just rearranged this up here, right?