James buys a shirt and a pair of pants for an office party. pressed for time he randomly chooses between a white , blue or green shirt. the he randomly picks a black or brown pair of pants. what is the probability of james wearing a blue shirt or black pants
a. 1/6
b. 2/3
c. 1/3
d.1/2

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.