Item 3: Using a Venn diagram, determine the number of students in each region based on the following data: [Data for sets A, B, C and their intersections would be provided here.]

Here's a step-by-step solution for Item 3: Let A, B, and C represent the sets of students who ticked Andrew, Badru, and Cathy, respectively. We will use a Venn diagram approach to solve this problem, where each region represents a distinct group of students. Let: N(A_only) = students who ticked only A N(B_only) = students who ticked only B N(C_only) = students who ticked only C N(A B_only) = students who ticked A and B, but not C N(A C_only) = students who ticked A and C, but not B