These are the options for the Question: Let E be an event such that P(not E)=1/5,then P(E)is equal to: (a) 1/5 (b) 2/5 (c) 0 (d) 4/5 The correct answer: Given that P(not E) = 1/5, we can find P(E) as follows: P(not E) = 1/5 1 - P(E) = 1/5 (since P(not E) = 1 - P(E)) P(E) = 1 - P(not E) P(E) = 1 - 1/5 P(E) = 4/5 Therefore, the answer is (d) 4/5.
