In the first round of a card game, Niki scored 20 points.
Then, she lost 10 points on one turn and an additional 25 points on her final turn.

Part A
Choose the number line that shows the change in Niki’s score.

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