Use two-way tables, sample space, tree, Venn diagrams and the addition law

Use two-way tables, sample space diagrams, tree diagrams and Venn diagrams to represent all the different outcomes possible for at most three events.

Use of these for conditional probability is expected. (See 3p.09.)
Sample space diagrams may include listing or tabulating all outcomes of single events, or successive events, in a systematic way.
Understand the terms mutually exclusive and exhaustive.
Know the addition law for two mutually exclusive events:
P(A or B) = P(A) + P(B)
Know the general addition law:
P(A or B) = P(A) + P(B) − P(A and B)