Find the shaded area. Leave your answers in terms of PI. Answer choices:
4π
64π
6π
8π

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.

Complete this sentence with the best of choices given

Aline with a slope of -7 passes through the points (u,0) and (8,-7) what is the value of u?