SOLUTION: Let A and B be events in a sample space S. If P(A)= 2/9, P(B)= 7/36, and P (A and B)=0, what can you say about P (A or B)?

Algebra ->  Probability-and-statistics -> SOLUTION: Let A and B be events in a sample space S. If P(A)= 2/9, P(B)= 7/36, and P (A and B)=0, what can you say about P (A or B)?      Log On

P(A or B) = P(A) + P(B) - P(A and B).


Is is standard general formula of the Probability theory.