3.3 Addition Rule Flashcards
1
Q
Mutually Exclusive Events
A
Two events that cannot occur at the same time.
Ex: rolling a 5 and 6 at the same time with one die.
2
Q
Addition Rule
A
Probability that event A or B will occur.
Formulas: P (A or B) = P(A) + P(B) - P (A & B)
Word: or
Addition Rule (Mutually exclusive events): P (A or B) = P(A) + P(B)
NO DOUBLE COUNTING
