Navigate to /Apps/SysPrefs > Accounts, click on "Change Password," and click on the "key" icon adjacent to the "New Password" field to bring up Password Assistant.
I can't begin to do the math necessary to answer your second question, kevs, but I can see why a phrase such as you chose...intelligible English, all l. c. letters, and no gibberish, may be considered both strong and weak at the same time.
Personally, I'd pass on the Web site that says "strong."
Edit: Another comparison... Look
what happens when you simply add a space between "I" and "jogged." (Like before, the math is beyond me.)
