Which of the following logarithmic expressions have been evaluated correctly? a. ln1=0

b. log2 9=3

c. log 1/100=12

d. log3 (−1)=13

e. log5 1/125=−3

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