depends on the prof and the program lol... I'm in crim and psyc and some of those courses have pretty high averages.
my psyc221 or whatever course had an average of 71%
a mark booster, btw, barry cartwright's criminology classes ... when i had him for 101 and 131, the average was always a B (no scaling). For 101, the most common grade was an A+ or something