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March 28th, 2018, 08:23 PM   #1
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Is there a correct choice/letter in the problem?

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March 28th, 2018, 08:38 PM   #2
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I tried to answer it and got 3/4 or 6/8 after using the union set operation for 4/8 or 1/2 and 3/8, based on what is being asked in the problem. https://www.mathplanet.com/education...lity-of-events

Last edited by MIIF; March 28th, 2018 at 08:54 PM.
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March 28th, 2018, 10:32 PM   #3
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Well I am with you.

P(even) = 4/8

P(less than 4) = 3/8

P(even and less than 4) = P(2) = 1/8

P(even or less than 4) = P(even) + P(less than 4) - P(even and less than 4) =

4/8 + 3/8 - 1/8 = 6/8 = 3/4.
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March 29th, 2018, 05:15 AM   #4
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Same as: what is probability that it does not end up on 5 or 7?
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