Binomial Probability

• We wish to repeat an experiment n times.
• All n trials are independent.
• Each has only two outcomes, success or failure.
• The probability of success or failure remains the same.
• p is the probability of success
• q = 1-p is the probability of failure.
• We would like to know the probability of exactly x successes
• P(x) = _nCx p^xq^n-x