# Probability: Selecting Balls

- Author:
- Virginia Keith, mcdull

- Topic:
- Probability

Conditional and Compound Probability

The slider with "a" on it represents time. Start with a = 0. Move slider to the right to show the first marble being selected. Check your answer. Move slider further to the right to show second marble being selected. FIRST Check your conditional probability. SECOND, use your conditional probability to find the probability of the compound event happening. CONTINUE this process until all marbles are drawn.