Question: Extracurricular activities and grades. North Carolina State University studied student performance in a course required by its chemical engineering major. One question of interest was the relationship between time spent in extracurricular activities and whether a student earned a C or better in the course. Here are the data for the 119 students who answered a question about extracurricular activities:

                               Extracurricular Activities
                                    (hours per week)

                   Less than 2         2 to 12         More than 12

C or better          11                   68                    3

D or F                  9                    23                   5

Calculate percentages that describe the nature of the relationship between time spent on extracurricular activities and performance in the course. Give a brief summary in words.