Joey read in his biology book that fish

activity increases with water temperature, and he

decided to investigate this issue by conducting

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 yˆ =152.1+ 37.65t , 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?

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