9. A regression between foot length (response variable in cm) and height (explanatory variable in inches) for 33 students resulted in the following regression equation: foot length = 10.9+0.23- height One student in the sample was 73 inches tall with a foot length of 29 cm. What is the residual for this student? (а) 0 ст (b) 1.31 cm (c) 27.69 cm (d) 29 cm

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