If the probability that it may rain tomorrow is 2/5, what is the probability that it may not rain?
Let A−A-A− the event that it may rain tomorrow, in that case Aˉ−\bar{A}-Aˉ− the event that it may not rain tomorrow.
P(A)=25;P(Aˉ)=1−P(A)=1−25=35.P(A)=\cfrac{2}{5};\\ P(\bar{A})=1-P(A)=1-\cfrac{2}{5}=\cfrac{3}{5}.P(A)=52;P(Aˉ)=1−P(A)=1−52=53.
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