Someone pls help me i do not understand !!

What set does not contain -3 the set of all real numbers the set of all integers the set of all whole numbers the set of all rational numbers

Is the power produced directly proportional to the wind speed, give reasons for 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