The equation y=6.3x + 67.4 is a linear model for data comparing the ages of boys between ages 2 and 10 years old (x) and their average heights in centimeters (y).
what is the average height of a 8 year old boy?
Rob found that the coefficient of determination between the lengths of essays submitted to a teacher (x) and the score the teacher gave the essay (y) was about 0.661. what can we conclude?