Abag contains 3 yellow, 2 orange and 7 brown marbles. event a is defined as drawing an orange marble on the first draw and event b is defined as drawing a brown marble on the second draw. if two marbles are drawn from the bag, one after the other and not replaced, what is p(b|a) expressed in simplest form? a. 7/11 b. 6/11 c. 1/2 d. 1/6