So in the context of this random variable X, we could define heads as a success because that's what we are happening to count up. And so you're either going to have success or failure. You're either gonna have heads or tails on each of these trials. Now another condition for being a binomial variable is that you have a fixed number of trials. Fixed number of trials. So in this case, we're saying that we have 10 trials, 10 flips of our coin. And then the last condition is the probability of success, and in this context, success is a heads, on each trial, each trial is constant.