Astudent was given a piece of rope and told to cut it into two equal pieces, keep one piece, and pass the other piece to the next student. each student was to repeat this process until every student in the class had exactly one piece of rope which of the following could be the fraction of the original rope that one of the students had?

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