Unions, Intersections and Complements

In the last activity we discussed how we assign probabilities to simple events. In this video we look at how we can take these simple events and work out probabilities of more complicated events. Together we have now examined the following event relations:

• Unions: where we are interested in whether at least one of several events occur
• Intersections: where we are interested in whether multiple events all occur
• Complements: where we are interested in whether events do not occur

In the next step, Adrian will take us through a more detailed example.