Which of the following cannot be the probability of an event?
(i) 23
(ii) −1.5
(iii) 15%
(iv) 0.7
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Solution
Probability of an event lies between 0 and 1, i.e., (0≤p(E)≤1) 23, 15%, 0.7 lie between 0 and 1, whereas −1.5 does not.
Hence, option (ii) is the correct answer.