Let A = D E = d1 d2 . . . dn e1 e2 . . . en and b = b1 b2 ... b2n Use the normal equations to find the solution x to the least squares problem.

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...