Objective To find binomial probabilities and to use binomial distributions
At each level of a Galton box, a marble can take one of two possible paths.
Binomial Probability
Essential Understanding You can use binomial probabilities in situations involving two possible outcomes.
A binomial experiment has these important features:
Recall from Lesson 11-4, that you can use a tree diagram to find probabilities. The tree diagram on the following page shows different outcomes and probabilities for a basketball player shooting two free throws. It is known that this player is a good shooter, having hit (H) about 90% of the free throws so far this season.