Lesson 2

Lesson 2: Mutually Exclusive and Non-Mutually Exclusive Events

Focus

Have you ever won, or know of anyone who’s won, money playing the lottery? Have you ever been, or know of someone who has been, struck by lightning? Which of these two events do you think is more likely to happen? Do you think both events could happen to someone at the same time, or do you think that only one of the events could happen to someone?

Type “lottery winner struck by lightning” into your favourite search engine, and see if you can find anyone who has

• won the lottery and been hit by lightning
• won the lottery only
• been hit by lightning only

Lesson Outcomes

At the end of this lesson, you will be able to

• classify, determine, and represent, using set notation and graphic organizers, mutually exclusive and non-mutually exclusive events

• solve contextual problems that involve the probability of mutually exclusive events and non-mutually exclusive events

• create and solve contextual problems that involve the probability of mutually exclusive events and non-mutually exclusive events

Lesson Question

In this lesson you will answer the following question: How are problems that involve mutually exclusive and non-mutually exclusive events solved?

Assessment

Your assessment may be based on a combination of the following tasks:

• completion of the Lesson 2 Assignment (Download the Lesson 2 Assignment and save it in your course folder now.)
• course folder submissions from Try This and Share activities
• additions to Glossary Terms and Formula Sheet
• work under Project Connection