Joey read in his biology book that fish activity increases with water temperature, and he decided to investigate this issue by c
onducting an experiment. On nine successive days, he measured fish activity and water temperature in his aquarium. He found the equation of the LSRL to be y t ˆ = + 152.1 37.65 , where yˆ is the predicted amount of activity. If one of Joey’s days had a water temperature of 69.0 degrees Fahrenheit and the fish activity on that day was 265, what is the residual activity for this particular temperature?
Anything to a negative power becomes the inverse with the coefficient to a positive power. For example, 3^-1 becomes 1/3^1 or just 1/3. 3^-2 would be 1/3^2 or 1/9.
