A newspaper collected information on schools in its circulation area in order to compare their quality. Two measures the newspaper collected for each school, mean class size and mean score on a statewide reading exam, are shown in the scatterplot. One school in the report, Springside Elementary, is labeled in the graph.
Answer
A
Springside does not affect the correlation.
B
Springside weakens the correlation shown in the scatterplot.
C
Springside strengthens the correlation shown in the scatterplot.
D
Removing Springside would increase the value of the correlation coefficient.