Visual aids, like charts and diagrams, can make it easier to understand complementary events in probability. They show how events relate to their opposites.

Example

• Event A: Rolling a 3 on a die
• Complement of A: Not rolling a 3

With a probability chart, you can quickly see:

• The chance of Event A, (P(A) = \frac{1}{6})
• The chance of the complement, (P(A') = 1 - P(A) = \frac{5}{6})

These visuals help you see the link between events and their complements. This makes it simpler to do calculations!