If you want to survey 100% of the students, and 20% has been already surveyed, 200 students would chose pop as their favorite genre of music because 41 x 5 = 205, which is closest to 200.
875: 100% = 350: x% 875x = 350 * 100 875x = 35000 x = 35000/875 x= 40% - that is the percentage of female members Which means that the percentage of the members who are male is 60%.
