2. The numbers below represent the amount of time (minutes) that it took Diana to get to
work each day last week:
21, 26, 47, 44, 22
What is the mean absolute deviation?

1. are the triangles similar and if so why? what is the value of x? show your work.

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.

What’s 8y+48 and factor each expression completely