, the average of and .
This section requires Javascript.
You are seeing this because something didn't load right. We suggest you, (a) try
refreshing the page, (b) enabling javascript if it is disabled on your browser and,
finally, (c)
loading the
non-javascript version of this page
. We're sorry about the hassle.
This problem asks for the average of the answers of problem 13 and problem 15, which are 3 0 8 9 and 4 6 2 6 8 9 respectively. So, their average is 2 3 2 8 8 9 .