1. Two hundred students have enrolled in at least one Grade 12 university course this year. 70 are in Chemistry 110 are in Physics 76 are in Biology 60 are in Chemistry and Physics 35 are in Physics and Biology 13 are in Biology and Chemistry 7 are in Chemistry, Biology, and Physics (a) Draw a Venn diagram to represent this situation. (b) Use the Venn diagram to determine the number of students who take Grade 12 courses but no Grade 12 university science courses. (c) Determine the probability that a student selected at random from the group is taking Biology. (d) Determine the probability that a student selected at random from the group is taking Chemistry or Physics