Say I have the problem: I roll a die three times and I am interested in the probability of ending up with two 1's.
My impression is that a single roll is called a trial.
What is the full 3-roll action called? I thought it was called an experiment, but I've seen experiment used synonymous with trial.
Using the binomial distribution, we call getting a 1 here a "success" and getting anything else a "failure." This might confuse students who think it's a "failure" to get three 1's. Is there an alternative/better way to say this acquiring of a 1 vs. not a 1?