Mr. Evans, the English teacher, requires his students to randomly select their next 2 out of 5 books to read. A student could select a book with 800, 700, 600, 500, or 400 pages. List all possible samples of selecting 2 of the 5 books, and then calculate the average number of pages for each sample of 2 books. Use that information to choose the dotplot that shows the complete sampling distribution. distribution 1 distribution 2 distribution 3 distribution 4