The post's author
No, he/she said statistics is a requirement for the psychology students, of which they have a lot.
In response to the rest of your post, I don't really think of CS being in the same category as math, physics, etc. It just doesn't seem as "science-y" to me.... Though I'm just a student barely starting his CS degree, so what do I know eh.
I'm sure you're very proud that you read above 2nd grade level, but when you get to seventh or eighth grade, you'll find that your teachers call this a "run-on sentence", and penalize you for writing such sentences yourself. They'll also point out that "US Justice Department has sent letter" is missing an article.
While we're on the topic of grammar, we should note that a comma followed by a coordinating conjunction (e.g. ", and") is equivalent to a full stop, so your post is equivalent to the following:
... call this a "run-on sentence." Penalize you for writing such sentences yourself.
This is what we call a sentence fragment. I don't know if your original sentence would be considered a run-on or a fragment, but it's incorrect either way. Also note that the period or comma comes before, not after, the double quote mark.
Despite these minor errors, we all somehow understood what you meant. Isn't it just magical?
"I've seen it. It's rubbish." -- Marvin the Paranoid Android