You find a crystal in the shape of a prism. The point B is directly underneath point E, and the following lengths are known: From A to B: 2 mm From B to C: 3 mm From A to F: 6 mm From B to E: 10 mm From C to D: 7 mm From A to G: 4 mm What is the volume of the crystal?

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