Science:Math Exam Resources/Courses/MATH102/December 2019/Question 04 (a)/Statement

Remember our fishy friends? The quality of hatching of larvae of cold-water fish depends on the temperature of the water. Each hatch is given a quality ranking from 0 to 10, with 10 being a perfect hatch.

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In different places along one particular stream, hatch quality and temperature was measured for two species, Northern Rock Sole and Southern Rock Sole. This data is graphed as points below. Also graphed is a fitted function.

In terms of sum of squared residuals, which of the two species of fish does the curve fit best? As always, justify your answer.