There are two boxes containing only red and white pens. Box A has 10 red pens and 10 white pens. Box B has 9 red pens and 6 white pens. A pen is randomly chosen from each box. List these events from least likely to most likely. Event 1: choosing a red pen from Box A. Event 2: choosing a red or white pen from Box A. Event 3: choosing a red pen from Box B. Event 4: choosing a white pen from Box B. Least likely Most likely Event , Event , Event , Event ]