HSC Together Year 11 Maths Standard: Complementary Events

Maths Standard

• Earning and Managing Money
• Formulae and Equations
• Measurement and Energy
• Relative Frequency and Probability
• Perimeter, Area and Volume
• Classifying and Representing Data
• Linear Relationships
• Interest and Depreciation
• Exploring and Describing Data
• Working with Time
• Budgeting and Household Expenses
• Back to other subjects
Back to other subjects

Complementary Events

What are complementary events?

The complement of an event is quite tricky to understand! The complement of an event E is the event not including E. But wait, what does this even mean? For example, when throwing a die, the complement of 2 is the events 1,3,4,5 and 6. An event and its complement represent all the possible outcomes and events that are certain to occur. The complement event and the event will always equal to 1.This post will help you understand complementary events inn Prelim Standard Math.

How to find the complementary event

The videos below explain how to find the complementary event and what the formula is that helps us find this.

How to calculate the probability of complementary events

The following video explains how to calculate the probability of complementary events by using an example.

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