Exactly.
It's not a particularly hard mathematical concept to grasp (try fifth grade math!) but I basically gave up trying to explain it to some of the knuckleheads on the Yahoo board.
For example, 15 daily closes at $.90 and 15 daily closes at $1.10 would give a $1 average for 30 trading days. The higher up it goes moving forward, the farther back you can go to include days with lower- priced closings in your 30 consecutive-day grouping.
Your suggested scenario of daily closings in the $1.50 range would be great, but it really wouldn't even have to go that high.