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08-01-2016
Mathematics

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3 runners compete in a race. The probabilities that the 3 runners finish the race in under 10 seconds is 1/4,1/6,2/5. What's the probability THAT AT LEAST ONE of the runners will finish the race in under 10 seconds?

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jacobswain jacobswain

08-01-2016

1/4=2.5,1/6=1.5333333333333,2/5=4

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