Below are three boxes containing black and white balls. The number of each color is noted inside the box. Draw a ball from box one and place it in box 2. Then draw a ball from box 2 and place it in box 3. Finally draw a ball from box 3. Box one 6 white 3 black box 2 3 white 3 black box 3 3 white 1 black what is the probability that the last ball drawn from box 3 is white