The means of the grade point averages of four samples taken from a population of students are shown in the table below. which of these is most likely closest to the mean grade point average of the population? sample size sample mean 10 3.51 20 3.42 30 3.39 40 3.34 a. 3.51 b. 3.39 c. 3.34 d. 3.42

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

Varies inversely with x. if y=8.5 when x=-1 find x when y=-1

Which best describes a central bank's primary goals? limiting inflation and reducing unemployment reducing unemployment and maintaining cash flow controlling stagflation and reducing unemployment managing credit and ensuring the money supply's liquidity