0 is the answer to the question.
5/8 of them are not white, so 5/8 times 56, you get 35.
To figure out R, add 1.97+0.65 together. 1.97+.065=2.62
For a survey like this, you want to take a random sample. It would be a good idea to use an alphabetical list of the students. Then, you could randomly select students from the list.
The principal would want to avoid surveying all the same type of students. For example, don't just ask the athletes.
If there are 3 bad guys and 3 good guys then they don't out number the good guys.
