Binomial Distribution
The binomial distribution is the discrete probability distribution of the number of successes in a sequence of N independent yes/no experiments, each of which yields probability of success p and probability of failure q (= 1 − p). Consequently, the probability of an event happening k times in N intervals may be expressed as:
Properties of the binomial distribution include:
Example:
What is the probability of getting exactly 2 tails in 6 tosses of a fair coin?Solution: