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Mathematics, 26.07.2019 13:30 animationfusion
Four years ago peter was three times as old as sylvia, and in 5 years the sum of their ages will be 38 years. find their present ages
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Mathematics, 21.06.2019 19:40
Suppose that 3% of all athletes are using the endurance-enhancing hormone epo (you should be able to simply compute the percentage of all athletes that are not using epo). for our purposes, a “positive” test result is one that indicates presence of epo in an athlete’s bloodstream. the probability of a positive result, given the presence of epo is .99. the probability of a negative result, when epo is not present, is .90. what is the probability that a randomly selected athlete tests positive for epo? 0.0297
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Four years ago peter was three times as old as sylvia, and in 5 years the sum of their ages will be...
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