Students at a high school were polled to determine the type of music they preferred. There were 1950 students who completed the poll. Their responses are represented in the circle graph.
What percent of students preferred rap music?
About % of the students who completed the poll preferred rap music.
(Round to one decimal place as needed.)

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