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OpenStudy (anonymous):
The probability of event X is 0.4. If events X and Y are complements, what is the probability of event Y?
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OpenStudy (anonymous):
0.6
OpenStudy (callisto):
Since events X and Y are complements, P(X) +P(Y) =1 0.4 + P(Y) =1 P(Y) = 1-0.4 = ??
OpenStudy (anonymous):
0.6
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