please show setup

{1 point} Rework problem 16 from section 3.4 of your text, involving university students' math backgrounds. Assume that 55 percent of the students at the university have taken 4 years of high school math. Of those with four years of high school math, 3t) percent plan to major in science. Of those without 4 years, only 20 percent plan to major in science. You stop a student at random. If the student plans ID major in SEiEHCB, what is the probability that \"\"5 student had TDIJI' years Of high school math