9) At your school, 73% of students are involved in a club or a sport. The school newspaper selects a random sample of 50 students and finds that 68% of them are involved in a club or a sport. Which of the following is true? (A) 73% is a population and 68% is a sample. (B) 68% is a population and 73% is a sample. (C) 73% is a parameter and 68% is a statistic. (D) 68% is a parameter and 73% is a statistic. (E) 73% is a parameter and 50 is a statistic