When comparing the different definitions of public relations presented in the text, which word appears in all of them?

Which of the following describes the percentage of variation in one variable that is predicted by knowledge of the second variable?

a. correlation coefficient b. scattergrams c. F d. coefficient of determination

When a class speech requires the use of statistics and expert witness testimony, it is an example of the _______________ persuasion style.

a. instrumental b. presentational c. quasilogical d. analogical