1. 100 students who are in 9th or 10th grade were asked if they participated in at least one extracurricular activity (sports, music, or drama). 40 of the students are in 10th grade, but only 18 of these participate in at least one extracurricular activity. 32 of the 9th grade students participate in at least one extracurricular activity. create a two-way table (a) identify the variable and the categories represented in this problem. (b) set up and fill in a two-way table to represent the frequencies in this problem.