# Binomial Distribution Formula

The notation for the binomial distribution formula are as followed:
n=number of trials
x- number of success that happen during n trails
p = Probability of success  [Note: If given the q then (p = 1-q)]
q = Probability of failure  [Note: If given q then (q=1-p)]
! = Factorial

Before using this formula always verify that it meets the requirements necessary for a binomial probability distribution.  Remember that the ! symbol represents a factorial.

Learn how to solve a Binomial Distribution TI-84 | TI-83 by following the guide but make sure it meets the necessary requirements which can be found using the Binomial Probability Distribution Definition.