A high school principal collects data on the English and math scores of students in grades 9 through 12. The principal plots the scores for each grade on a separate scatter plot and draws a line of best fit for each scatter plot. The results are described below.
In Grade 9, there was no correlation between the English and math scores of each student.
In Grade 10, there was a strong correlation between the English and math scores of each student.
In Grade 11, as the English scores increase, the math scores generally increase, but there is only a moderate correlation between the two variables.
In Grade 12, as the English scores increase, the math scores generally decrease, but the data points are not close to the line of best fit.
Determine whether each correlation coefficient below corresponds to grade 9, 10, 11, or 12. Select a
grade for each correlation coefficient.