In a binomial distribution, the probability of success must remain the same for every trial.

A binomial experiment can have an unlimited number of trials

In a game, a player has a 20% chance of scoring a point each round. What is the probability that they score at least once in 3 rounds?

A biased coin shows heads with probability 23\frac{2}{3}​. What is the probability that the first tail appears on the 6th toss?

A professor assigns a group project to 6 student groups. Historically, each group has an 80% chance of submitting the assignment on time (independently of each other).

What is the probability that exactly 5 groups submit their assignment on time?