Is there a relationship between the percent of high school graduates in each state who took the SAT and the state’s mean SAT Math score? Here is a residual plot from a linear regression analysis that used data from all 50 states in a recent year. Explain why the conditions for performing inference about the slope β₁ of the population regression line are not met.

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50 25 -25 -50 10 20 30 40 50 60 70 80 90 Percent of high school graduates taking the SAT Residual