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**Binomial Probability calculator Formula:**

P(N,A) = P^{A} × (1-P)^{N-A} × N!/(A! × (N-A)!)

where:

**N** = Total number of events occured

**A** = Number of times that event A occured

**P** = Probability that event A will occur

**P(N,A)** = Exactly A out of N probability