Three months later...

"Psst," Julie whispered beside me. "Party at Tom's dorm tonight."

I shook my head and whispered back. "Can't. Plans tonight."

"You're no fun!"

"Ladies?" Professor Carlton called out from the head of the lecture hall. “Am I boring you? Because I can put this on hold if you'd like?"

My cheeks flushed red and I waved my hands quickly. “No, no! Sorry, professor!"

"Thank you," he replied. "So, as I was saying...standard deviation is a measure of the amount of ...