### Home > A2C > Chapter 12 > Lesson 12.3.1 > Problem12-128

12-128.
1. A bag contains five green marbles and four white marbles. You pick three marbles, one at a time, without replacing them. Homework Help ✎

1. What is the probability of getting white, another white, and then green?

2. What is the probability of getting two white and a green in any order?

$\frac{4}{9}\cdot(?)(?)$

Remember that the marbles are not replaced, so the probabilities for drawing the next marbles are changed.

Use combinations.

How many ways can you draw two white marbles and one green marble? How many ways can you draw three marbles?