Im not sure if I did A and B right and I have no clue how to do C and D

National College Health Assessment Survey The following exercise uses data on college students collected from the American College Health AssociationNational College Health Assessment Survey1 conducted in Fall 2011. The survey was administered at 44 colleges and universities representing a broad assortment of types of schools and representing all major regions of the country. At each school, the survey was administered to either all students or a random sample of students, and more than 27,000 students participated in the survey. Binge Drinking Students in the ACHA-NCHA survey were asked "Within the last two weeks, how many times have you had ve or more drinks of alcohol at a sitting?" The results are given in the table below. Total 0 5402 13,310 18,712 1 2 2147 3678 5825 3 4 912 966 1878 5 + 495 358 853 Total 8956 18,312 27,268 (a) What percent of all respondents answered zero? Round your answer to one decimal place. n % (b) Of the students who answered ve or more days, what percent are female? Round your answer to one decimal place. a % (c) What percent of males report having five or more drinks at a sitting on three or more days in the last two weeks? Round your answer to one decimal place. % (d) What percent of females report having five or more drinks at a sitting on three or more days in the last two weeks? Round your answer to one decimal place. %