What is the value of the expression shown below? 3+ (2+8)2 - 4x ( 1/2) 4
A 41/32
B 4 9/16
C 6 1/8
D 6 1/32

There are three bags: a (contains 2 white and 4 red balls), b (8 white, 4 red) and c (1 white 3 red). you select one ball at random from each bag, observe that exactly two are white, but forget which ball came from which bag. what is the probability that you selected a white ball from bag a?