A researcher studying the relationship between drivers' average speed (MPH) on the highway and number of accidents they have been involved in develops the following regression equation: Y'= 1.75 + .03(X). In this example, X refers to ______.
A) the Y-intercept
B) the slope of the equation
C) a driver's average speed (MPH)
D) a driver's number of accidents

Question

Quizplus · Accepted Answer

X refers to a driver's average speed (MPH), as it is the independent variable being used to predict the number of accidents a driver has been involved in.

A Researcher Studying the Relationship Between Drivers' Average Speed (MPH)