So a 22% success, if you ask 20 people, you should, on average, get about 4.4 signups.

You're doing them 20 at a time, and you've discovered over time that you have about a 22% success rate. In this scenario, let's assume that you are asking customers to sign up for your mailing list. My sample file is the Binomial Distribution, and you can find it in the Chapter Four folder of your Exercise Files collection. In this movie, I will show you how to calculate the probabilities for outcomes described by the binomial distribution, which handles this type of yes or no case. For example, a customer either will or will not sign up for your mailing list. So many business questions can be answered yes or no, true or false.