Southern education for a long time, the South has lagged behind the rest of the United States in the performance of its schools. Efforts to improve education have reduced the gap. We wonder if the South stands out in our study of state average SAT Math scores. The figure below enhances the scatterplot in Figure 3.2 (page 145) by plotting 12 southern states in red.
FIGURE 3.2 Scatterplot of the mean SAT Math score in each state against the percent of that state’s high school graduates who took the SAT. The dotted lines intersect at the point (21, 570), the values for Colorado.
(a) What does the graph suggest about the southern states?
(b) The point for West Virginia is labelled in the graph. Explain how this state is an outlier.
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