Let A = 011 0 1 1 0 1 1 (a) Compute (I A) 1. (b) Compute A2 and A3. Verify that (I A) 1 = I + A + A2.

Week 5 Chapter 4 Example: Five Card stud; find p(we are dealt a pair) There are 4 of each card Pair: meaning exactly two 7’s and then the other three cards don’t match one another ~because that would mean a full house or two pairs Sample space= number of 5 card hands o =( ) = 52! / 5!47! = 2,598,960...