This exercise provides information about data in a survey of students. Of the students who identified their class year in the su
rvey, 82 were first years, 219 we're sophomores, 28 we're juniors, and 61 were seniors. Find p^, the proportion who are upper class students (juniors or seniors.) Round your answer to three decimal places.
For this case we subtract $228 minus $12 to find the amount of money Tim spent on books. So, to know how much spending in each book we divide $228 by 6.