Based on the graph, is there an association between favorite type of music and favorite school subject? There is an association because the distribution of favorite music differs among the subject groups.
There is an association because the distribution of favorite music is the same among the subject groups.
There is no association because the distribution of favorite music differs among the subject groups.
There is no association because the distribution of favorite music is the same among the subject groups.

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.