What is the distance between points S and U if S is 2, 1 and U is 6, 8 Round to the nearest tenth of a unit.

A. 3.3 units

B. 6.4 units

C. 8.1 units

D. 12.0 units

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.