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**andrew2322** In a school of 100 students, 85 are atctive participants in hockey or basketball. Basketball is popular with 75 players, but the coach is happy with the squad of 15. Find the probability that a student chosen at random is:

a.) A hockey player

b.) A participant in both sports

c.) Not a basketballer

d.) Not a participant in either sport

for this problem i attempted to draw up a venn diagram, however i could not figure out all the values, please help me. Please reply with answers, and working out i have to go to sleep for school tomorrow, thanks