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June 14th, 2013, 07:33 AM   #1
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hard question of probability

At one school the probability of a student being a fan of Brazil is 0,6, to watch movies is 0,7 and enjoy the beach is 0,8. Between what values ??we find the probability of a student of this school simultaneously cheer for Brazil, watch the movie and enjoy the beach?
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June 14th, 2013, 12:43 PM   #2
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Re: hard question of probability

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Originally Posted by vitoriogauss
At one school the probability of a student being a fan of Brazil is 0,6, to watch movies is 0,7 and enjoy the beach is 0,8. Between what values ??we find the probability of a student of this school simultaneously cheer for Brazil, watch the movie and enjoy the beach?
Best case Brazil fans all watch movies and enjoy beach. Therefore max = 0.6
Worst case Brazil fan include all non-watch movie and non-enjoy beach. Also non-watch movie all enjoy beach and all non-enjoy beach all watch movie. min = 0.6 - 0.3 - 0.2 = 0.1
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