Calculate P(X = k) = (1-p)^(k-1) · p for the first success on trial k.
Calculate P(X = k) = (1-p)^(k-1) · p for the first success on trial k.
Success probability per trial.
Which trial the first success occurs on.
Probability that the first success occurs on exactly the k-th trial.
How this calculator works
Probability that the first success occurs on exactly the k-th trial.
Common questions about this calculator
