Martin keeps track of the low temperature every day. On Monday, it was -12˚ On Tuesday, it was -9˚C. What is the difference between the low temperature on Tuesday and the low temperature on Monday? Group of answer choices
21 C

-21 C

-3 C

3 C

How can the correlation in the scatter plot graph below best be described? positive correlation negative correlation both positive and negative no correlation

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.

Side xy of triangle xyz is extended to point w, creating a linear pair with ∠wyz and ∠xyz. measure of an exterior angle what is the value of x? 64 80 100 180