Question: Let (S3, Prob) be the probability space of the experiment of flipping three coins.
(i) Let A be the event that the number of heads is even. Does there exist an event B ⊂ S3 such that A and B are independent?
(ii) Let D be the event that either the result of the second coin flipping is tail or the result of the third coin flipping is tail. Find all events C such that C and D are independent.