I will give you brilliants a) The mode of 59, 85, 72, 42, 62, 72, 53,
59, 63, and ■ is 72. Determine the
missing value.
b) The median of 15, 17, 13, 19, 20, 33, 22,
12, 18, and ■ is 18.5. Is it possible to
determine the missing value? Explain.
c) The mean of 79, 76, 55, 20, 14, 68, 30,
29, and ■ is 52. Calculate the missing
value.

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.

How can you tell when x and y are not directly proportional?

We just started the introduction into circles and i have no idea how to do this.