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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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  1. 29 July, 05:46
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    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
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