5. let a be a non-empty set and let s = p(a) be its power set. let b be a non-empty subset of a. on s we define a relation r as r {(a, a2) e s x s|an b = a2n b} describe the equivalence classes of r when a z and b {1, 2, 3

Of the 27 players trying out for the school basketball team, 8 are more than 6 feet tall and 7 have good aim. what is the probability that the coach would randomly pick a player over 6 feet tall or a player with a good aim? assume that no players over 6 feet tall have good aim. a. b. c. d.