Hi there,

I'm currently trying to wrap my head around the binomial distribution and I'm caught up on how the probability function works for calculating the probability ofsuccesses inkobservations.n

P(X = k) = (n C k) p^k (1 - p)^(n-k)

I understand that the formula works, but I don't see why it works...mainly b/c I don't understand why the chance for failure is factored into the equation. Any help in explaining this to me would be appreciated.

jjmclell