Calculate the correlation of a given data set. The test scores of five students in both math and geography are presented in the table. Math Geography Student 1 7 6 Student 2 9 5 Student 3 6 5 Student 4 8 8 Student 5 9 7 The calculation for the correlation, r, for this set of five students is __________ (answer choices are rounded to the hundredths place). A.) 0.10 B.) 0.32 C.) 0.45 D.) 0.57