A regression between foot length (response variable in cm) and height (explanatory variable in inches) for 42 students resulted in the following regression equation: ŷ = 10.4 + 0.21x a) One student is 74 inches tall with a foot length of 28 cm. What is the predicted foot length for this student? b) What is the residual for this student? c) If a student happened to be extraordinarily tall (say, 10ft, just for the fun of it) and had a foot size of 25 cm, how might this affect the slope of the regression line?

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