Intro to ProbabilityStats 67 Apr 11, 2023 • 1 min read stats67 lecture spring22-23 markdown Probability Formulas: P(A∪B)=P(A)+P(B)−P(A∩B)P(Ac)=1−P(A)P(B)=P(A∩B)+P(Ac∩B)P(A \cup B) = P(A) + P(B) - P(A \cap B) \\ P(A^c) = 1 - P(A) \\ P(B) = P(A \cap B) + P(A^c \cap B)P(A∪B)=P(A)+P(B)−P(A∩B)P(Ac)=1−P(A)P(B)=P(A∩B)+P(Ac∩B)