A swimming team consists of 18 members. Each member performs in at least one of the three events, freestyle(F), backstroke (B), and diving (D). Every diver also races. Eleven of the team swim freestyle and 10 swim backstroke. Two of the team swim backstroke and dive, but do not swim freestyle. Five of the team swim freestyle only, and seven of those who swim backstroke do not dive. Draw a diagram and find:
a) n(D)
b) n(F∩D∩B)
c) n(F∪B)
d) Pr(F∩B∩D')

Question

A swimming team consists of 18 members. Each member performs in at least one of the three events, freestyle(F), backstroke (B), and diving (D). Every diver also races. Eleven of the team swim freestyle and 10 swim backstroke. Two of the team swim backstroke and dive, but do not swim freestyle. Five of the team swim freestyle only, and seven of those who swim backstroke do not dive. Draw a diagram and find:
a) n(D)
b) n(F∩D∩B)
c) n(F∪B)
d) Pr(F∩B∩D')

zzr0ck3r · Answer

draw a vin diagram

anonymous · Answer

yes i know that but I can't finish it so I therefore can't answer the questions.