The equation of the regressive line is Y=a + bX. Match the following symbols to the description to the right.

Est. Length. 1. Denotes the variable plotted on the horizontal axis and called the explanatory or independent variable. 2. Denotes the variable plotted on the vertical axis and is R2 called the response or dependent variable. a 3. The regression result = the Y change in Y for a change in X of +1, and called the slope. b 4. The proportion of the variability of Y that is R explained by or accountable to X. X 5. The strength and direction of the linear relationship between X and Y. 6. The regression result = elevation of the line at X=0, and called the intercept. # & N W 6