________ is a procedure for deriving a mathematical relationship, in the form of an equation, between a single metric dependent variable and a single metric independent variable

___________: One who influences others to attain goals. The greater the number of followers, greater the influence

Fill in the blank(s) with the appropriate word(s).

By using full-service marketing communications agencies, integrated and more effective marketing communications at a much lower total communications cost can be achieved

Indicate whether the statement is true or false