Binomial probability calculates the chance of certain events happening, which have only two possible outcomes, such as flipping a coin. Excel offers a function that can calculate these sometimes complex calculations easily. When calculating binomial probabilities, you can achieve three basic calculations: The probability of exactly some number of successes in a given number of trials, the probability of at most some number of successes, and the probability of at least some number of successes. probability, you would enter “=BINOMDIST(12,20,0.5,false)”. To calculate the probability of achieving zero to 12 heads out of 20 coin tosses, you would enter “=BINOMDIST(12,20,0.5,true)”. Writer Bio
