The LSR equation for GPA on IQ is y = 0.10x - 3.49. A student with an IQ of 127 has a GPA of 7.85. Find the predicted GPA and residual for this student. Be sure to label each answer. Also, correctly interpret the slope.

Question

Mathematics

Jaydin Garrison

29 July, 05:15

The LSR equation for GPA on IQ is y = 0.10x - 3.49. A student with an IQ of 127 has a GPA of 7.85. Find the predicted GPA and residual for this student. Be sure to label each answer. Also, correctly interpret the slope.

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Answers (1)

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Austin · Answer 1

predicted GPA=9.21, residual = 1.36, a correct value of slope would be 0.09

Step-by-step explanation:

y=0.1x - 3.49

y: GPA

x: IQ

y=0.1 (127) - 3.49

y = 9.21

Predicted GPA = 9.21

residual = 9.21 - 7.85 = 1.36

The equation doesn't model the exact relationship between GPA and IQ.

A better slope value could be

7.85 = m (127) - 3.49

m=0.09