Binomial Distribution

In a situation where there are exactly two mutually exclusive outcomes (Ex: Success or Failure) of a trial, to find the x success in N trials with p as the probability of success on a single trial.

Ex:
Team A has won 15 Cricket Matches out of 50 played. What is the probability of winning atmost 5 matches in the next 10 matches?

x = 5, N = 10 and p = 15/50 = 0.3
Mean = N * p = 10 * 0.3 = 3