There are two boxes containing only blue and black pens. Box A has
5 black pens and
3 blue pens.

Box B has
10 black pens and

10blue pens.
A pen is randomly chosen from each box.
List these events from least likely to most likely.
Event
: choosing a black or blue pen from Box A.
Event
: choosing a green pen from Box B.
Event
: choosing a black pen from Box A.
Event
: choosing a black pen from Box B.