Disclaimer: I did not create nor do I own these videos. I have simply embedded them, courtesy of YouTube.
This is a great video because it gives walk-throughs of z-score calculations from homework problems. You may not have these exact problems, but the same concepts can be applied to your own work!
These examples rely on the Z-Score Formula:
MEMORIZE this formula, make sure you know it COLD!
If you do not know what the "m-like" symbol or the "o" with a tail are, check out What's with the Greek?