Well, this looks pretty much like a binomial random variable. In fact, I'm pretty confident it is a binomial random variable, and we could just go down the checklist. The outcome of each trial can be a success or failure. So trial, outcome, success, or failure. It's either gonna go either way. The result of each trial is independent from the other ones. Whether I get a six on the third trial is independent on whether I got a six on the first or the second trial.