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a number generator was used to simulate the percentage of students in a town who enjoy playing video games. the process simulates randomly selecting 100 students from the town and was repeated 20 times. the percentage of students who play video games is shown in the dot plot. which statement is true about the student population of the town?

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