**Probability Exercise**

A bowl contains 8 white balls, 4 black balls and 3 red balls. We randomly draw 3 balls from this bowl.

What is the probability of getting:

## 1. A white ball and two red balls.

### 2. Two black balls.

### 3. At least a white ball.

### 4. Three balls of the same color.

**The solution**

**1.**The number of possible cases for this experiment is:

**2.**The number of suitable cases is:

**3.**The mutually exclusive event of event A: ''Three balls of the same color'' is the event Ä€: ": ''We don't get any white ball"

We have:

And from it: