Dr. Rangel was interested in whether hours spent studying is related to students' anxiety about taking the final exam. The following is taken from his results section: "Pearson's correlation coefficient comparing students' total time spent studying and their anxiety levels related to taking a final exam was conducted. Students' time spent studying was significantly correlated with anxiety, r = -.58, p = .023. Calculate the coefficient of determination and indicate the percent to which the variation in students' anxiety levels are attributed to variation in total time spent studying. O 33.64% O 23.00% O 58.00% O 66.36%