Posted by KiKi on Wednesday, April 7, 2010 at 8:59pm.
If P (A) = 2/3, P (B) = 1/6, and P (A and B) = 0 what can you say about P (A or B)?

mathplease help due tonight  Reiny, Wednesday, April 7, 2010 at 9:13pm
I would say
P(A or B) = P(A) + P(B)  P(A and B)