the amount of money A after t years that principle p will become if it is invested at rate r compounded n times a year is given by the relationship A(t) P 1(+ r/n) where r is expressed as a decimal to the nearest tenth how long will it take 3000 to become 3600 if it is invested at 3% and is compounded quarterly

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