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Mathematics
OpenStudy (anonymous):

There is a 40 percent chance of rain today and a 50 percent chance of rain tomorrow. If the two events are independent, what is the probability that it will rain today or tomorrow? A. 18 B. 60 C. 90 D. 72 E. 70

OpenStudy (diyadiya):

E = 70

OpenStudy (dumbcow):

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

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