7. Imagine there are 50 students in a classroom, and you tally how many wear glasses or not, and what their favorite beverage is among coffee, tea and soda. You get the following numbers: Coffee Tea Soda Wear Glasses 7 6 Not Wear Glasses 18 10 (a) What is the probability a randomly selected student in this class wears glasses? (b) Is the favorite beverage choice of students independent to wearing glasses? (c) Are the beverage choices of coffee, tea, and soda mutually exclusive