P(A) in such a way that every outcome is counted only once. Multiplication Rule for P(A and B): The word and for two trials suggests multiplication, and when multiplying P(A ) and P( B), we must be sure that the probability of event B takes into account the previous occurrence of event A. 4-2 Basic Skills and Concepts Statistical Literacy and Critical Thinking 1. Notation When randomly selecting an adult, A denotes the event of selecting someone with blue eyes. What do P(A ) and P(A ) represent? 2. Notation When randomly selecting adults, let M denote the event of randomly selecting a male and let B denote the event of randomly selecting someone with blue eyes. What does P(M| B) represent? Is P(M | B) the same as P(B|M)