a joke about a math teacher

Hefei, China
June 24, 2013 10:44pm CST
Once in high school, our math teacher stepped in the classroom angrily, with test papers of last exam in her hand, and said in a loud voice, "I just can't understand why there is always someone getting a score below the average."
1 response
@narsha (466)
25 Jun 13
I didn't get it?
• United States
25 Jun 13
average it when you take all the "test scores" add them together and divide by the number of people who took the test...always due to mathematics at LEAST one third of the ppl will score below the average...if not more...scoring on a medium, or even a bell curve would be a better rating system...
@narsha (466)
25 Jun 13
@fruitcakeliz Thank you for answering my question,but what I didn't get is its a joke right? A joke should be funny,am I right?
• Hefei, China
25 Jun 13
@narsha I think it's funny because it was a math teacher who made such a mistake.