9. Armand is teaching a small sociology class this semester with 15 students. Armand is interested in the number exams student have the week of his midterm. He presents the data below. (25 Number of Exams a. What is the mean number of exams students have that week? (3 pts) . Place the number of exams in a frequency distribution table with number of exams being your category and number of students who have x scores being your frequency. (3 pts) Calculate the relative percent for each category? (2 pts) d. Calculate the cumulative percentage for each category. (2 pts) e. Use the data provided above to create a histogram of the number of exams students have that week. Be sure to label your x- and y-axis. (5 pts) f. Calculate the variance for the number of exams (5 pts) g. Calculate the standard deviation for the number of exams? (5 pts)