Complementary events and adding probabilities

Reason For Learning

To understand the logic of an event and its complement. The complement of an event happening is  that the event does not happen.

Learning Intention

Students will learn the meaning of ""complementary events"" and how this is connected to probability values. (The sum of the probability of an event and its complement is one.)

Key Vocabulary Terms

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ACMSP204 Level 8

Identify complementary events and use the sum of probabilities to solve problems