Sample Space, Events and Probability
Find the probability that there is at least one 5. Solution. Let E be the event that there is at least one 5. Then Ec is the event that there is no 5 and P(Ec) = (5 6) 100. Thus P(E) = 1 (5 6) 100. Example 19 Suppose that E and F are two events. If we know the probabilities of E, F and E \F, we can nd the probability of any set theoretic ...
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