The first term of an arithmetic sequence is 4 and the fifth term is 16. what is the nth term of the sequence?
a.
4n
b.
3n + 1
c.
5n – 1
d.
4n + 1

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