Hi I need help with questions 2, 3 &4!

2. Suppose we own two Statistics textbooks, four Data Science textbooks, and three Com- puter science textbooks. For the following questions assume that we have no duplicate textbooks (i.e. all textbooks are unique). (a) (1 point) In how many ways can we select two textbooks from each subject to donate to the bookstore? (b) (1 point) In how many ways can the books be organized on a bookshelf if the computer science books must be sidebyside on the bookshelf but the other books can be arranged in any order. 3. (1 point) Suppose a conference has 25 people enrolled. Assuming everyone shakes hands with everyone else exactly once, how many handshakes will take place? 4. In a certain city, 36%, 40%, and 24% of registered voters classify themselves as Inde pendents, Liberals, and Conservatives, respectively. In a recent election, 42% of the Independents, 71% of the Liberals, and 74% 0f the Conservatives voted. (a) (1 point) What percentage of registered voters in this city voted in this this recent election? (b) (1 point) Suppose a voter was chosen at random. Given that this person voted in this recent election, what is the probability that he or she is a. Conservative