Calculate the Probability of Two Events Using Sample Space Diagrams

This activity will focus on sample space diagrams.

A sample space diagram can be used to display all possible outcomes. 

Example

Here is a sample space diagram showing all the outcomes when a die is rolled and a coin is flipped.

We can also use sample space diagrams to find probabilities. 

Example

Looking at the diagram above, we could find the probability of flipping a head and rolling a 2 

On the sample space diagram we can see that there is one possible outcome out of a total of 12.

We could write that as a fraction 1/12

Let's get started!