Hi, I was wondering how they found out the probabi December 28, 2016 By Essaypros Hi, I was wondering how they found out the probability of .7 for getting at least 1 contract. I know how to get neither and both but not at least one. We Deliver Top Quality On Time As Promised! Ready to get started? Just click the button to be directed to a secure page so you can enter the details of your paper.