Answer:

COLOR  INT( RND * 16 )

Since RND is at most slighly less than one, RND * 16 will be at most 15.99999. INT will change that to 15. So INT( RND * 16 ) is at most 15. (And is at minimum a zero.)

End of the Chapter

That is the end of this chapter. You may wish to review the following. Click on a subject that interests you to go to where it was discussed.

An example of a nested FOR loop.
The inner loop thought of as a module.
A program that draws a wedge of stars.
The PSET statement.
The RND statement.
The INT statement.
Selecting a random integer from 0 to some maximum.

The next chapter starts a new topic: that of arrays. FOR loops will be very useful for programs that use arrays.