eddiebarb

Thanks everyone!

Tony’s political science final exam consists of eight True/False questions. If Tony guesses on every question, what is the probability that he gets exactly seven questions right? A) 1/32 B) 1/16 C) 1/8 D) 7/8 E) 31/32

Robin and Terry want to invite five of their friends to their wedding. Robin has seven friends and Terry has six, and Robin and Terry have no friends in common. If at least one of Robin’s friends and at least one of Terry’s friends must be invited, how many different groups of friends could Robin and Terry invite to their wedding? A) 462 B) 924 C) 1260 D) 2520 E) 151,200 Can somebody solve this one and post the solution? Thanks