The figure below shows a shaded rectangular region inside a large rectangle: a rectangle of length 10 units and width 5 units is shown. inside this rectangle is another rectangle of length 6 units and width 3 units placed symmetrically inside the larger rectangle. the smaller rectangle is shaded gray. what is the probability that a point chosen inside the large rectangle is not in the shaded region? answers: 18% 36% 42% 64%