IQ and GPA. Table 1.3 (page 29) reports data on 78
Chapter , Problem 2.61(choose chapter or problem)
IQ and GPA. Table 1.3 (page 29) reports data on 78 seventh-grade students. We expect a positive association between IQ and GPA. Moreover, some people think that self-concept is related to school performance. Examine in detail the relationships between GPA and the two explanatory variables IQ and self-concept. Are the relationships roughly linear? How strong are they? Are there unusual points? What is the effect of removing these points?
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