A person who weighs 125 pounds on Earth would weigh 47 1/2 pounds on Mars. Set up a proportion and solve using cross products to determine how much a child who
weighs 50 pounds on Earth would weigh on Mars.
Be sure to include units in your answer

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