Adrug company is running trials on a new test for anabolic steroids. the company uses the test on 400 athletes known to be using steroids and 200 athletes known not to be using steroids. of those using steroids, the new test is positive for 390 and negative for 10. of those not using steroids, the test is positive for 10 and negative for 190. what is the estimated probability of a false negative result (the probability that an athlete using steriodes will test negative)?

If you are just building your payment history, how many points from a perfect score will you possibly miss?

17. a researcher measures three variables, x, y, and z for each individual in a sample of n = 20. the pearson correlations for this sample are rxy = 0.6, rxz = 0.4, and ryz = 0.7. a. find the partial correlation between x and y, holding z constant. b. find the partial correlation between x and z, holding y constant. (hint: simply switch the labels for the variables y and z to correspond with the labels in the equation.) gravetter, frederick j. statistics for the behavioral sciences (p. 526). cengage learning. kindle edition.

9/10 divide by -3/15 as a mixed number