pen or pencil for ap stats

<p>pen or pencil for free response on ap stats?
please help me</p>

<p>They will tell you to use a pen on the free response, but my teacher says last year they let people use pencils too as long as they wrote really dark.. (they photocopy them then read them) Im gonna bring both, then ask the proctor if its ok to use pencil..</p>

<p>Pen I presume.</p>