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20 October, 05:37

Given a set of numbers n = {1,3,4,5,7}. if event a is the drawing of a number less than 4 and event b is the drawing of an even number, what is the probability that either event a or b will occur?

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  1. 20 October, 05:43
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    A OR b means that you add the individual probabilities ...

    P (<4) = 2/5 and P (even) = 1/5 so

    P (<4 or even) = 3/5
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