mathplease help due tonight
posted by KiKi .
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
I would say
P(A or B) = P(A) + P(B)  P(A and B)
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