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(i) Probability of an event \(E\) \(+\) Probability of the event ‘not \(E\)’ = .
(ii) The probability of an event that cannot happen is . Such an event is called .
(iii) The probability of an event that is certain to happen is . Such an event is called .
(iv) The sum of the probabilities of all the elementary events of an experiment is .
(v) The probability of an event is greater than or equal to and less than or equal to .
Answer variants:
Complementary Event
Equivally Likely
Mutually Exclusive Event
\(0\)
Impossible Event
Sure Event
\(1\)
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