Q5 of 31 Page 308

If P(E) = 0.05, what is the probability of ‘not E’?

We know:

P () = 1 – P (E)


P () = 1 – 0.05


= 0.95


Hence, the probability of 'not E' is 0.95


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Which of the following cannot be the probability of an event?

A. B. –1.5


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It is given that in a group of 3 students, the probability of 2 students not having the same birthday is 0.992. What is the probability that the 2 students have the same birthday?