Acarpenter built three bookcases, a, b, and c to stand next to each other along a wall. the total length of the wall is 456 centimeters. the carpenter will build two more bookcases, d and e, along the same wall. these two bookcases will have equal widths. the widths of bookcases a, b, and c

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.