The Simple Addition or OR Rule of Probability
ID:CVPOR
Video Overview
The addition rule helps you solve probability problems that involve two events. Even though we discuss two events - usually labelled A and B - we are really talking about performing one task, such as rolling dice or drawing cards, and finding the probability of two things happening in that one task. When asked to find the probability of A or B, we mean that A can happen, OR, B can happen, or both can happen together. This is what is stated in the addition rule.
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