Half the students are below average! This is outrageous!
Below the median
Unless scores follow a standard (or any other symmetric) distribution
median is an average
It's absolutely not. Median is a value in the middle of a sorted set and average is, well, average. In the set of 1, 7, 10: 7 is median and 6 is average.
as @force pointed out, 'average' has many meanings (haha). of course a lot of the time, average is used as 'mean'. but...not always!
Idk man looking up a definition for "average" is like
- a number expressing the central or typical value in a set of data, in particular the mode, median, or (most commonly) the mean, which is calculated by dividing the sum of the values in the set by their number.
and
- Any measure of central tendency, especially any mean, the median, or the mode. [from c. 1735]
and
1 a : a single value (such as a mean, mode, or median) that summarizes or represents the general significance of a set of unequal values
doesn't look like that dude's using the word "wrong" to me, a lotta people and mathematicians definitely recall using "average" meaning median
Standardized tests are normalized, so...
I cant tell if this is a joke or if this guy is in the bottom quartile.
It's a satirical account, that's not a real politician.
There are plenty of them out there that are this dumb though.
Its a little sad that it’s this hard to tell anymore. Thanks btw
Looks like a real educational problem.
First time I saw a statistician joke
We just need a few more to see if there’s a trend.
You're probably one of today's lucky 10,000.
Ironically, him being a fucking idiot actually proves his point.
Wait, this isn't satire?
Edit: I commented too soon. It's satire.
Yeah, and me being a fucking idiot proves it more.
Lmaooooo I love this save
I commend you for at least acknowledging it.
I notice there is a 25% in the top as well... Coincidence or conspiracy...
60% of the time, it works every time
I was skeptical of these numbers until I did the research. It's even worse than I thought. Did you know that only 20% of students test in the top quintile? Is our children learning?
I was born extremely smart. I always tested way at the top of the curve... far superior to all my peers.
I can almost see a facebook post along the lines of:
One doesn't have to be a rocket scientist to understand how terrible things are, when fully 25% of the population are in the bottom quartile.
25%!? That's nothing. Half of people are below average. That's twice of what you quoted!
Goodhart's Law: When a measure becomes a target, it ceases to be a good measure.
My state'a standardized test says kids are "at risk" if they aren't in the top 40% of the test. The top 50% could all be traditional "a-b" students. But because they weren't in the top 80% of a-b students they are at risk for failing academically.... It's so asinine and disheartening. The last half of the year is devoted to this idiotic test. Kids could be learning stuff that will enrich themselves... Instead they are learnig how to take a test better.
I'm surprised it's only 25%. These days, I'd figure at least 40% would be in the lowest quartile. Has anyone checked the math on this?
Check the math? What do I look like, a numbertician??
Damn, I was really hoping to find a mathmagician!
An education system that always fails a set number of people, regarless of how well people do, is a bad system, however.
There will always be 25% in the bottom quartile, regardless of how well any students perform.
I think their point is that you could have people in the bottom quartile who learned what they are expected to, are capable, but are failed anyway because of how they compare to others.
(Assuming curved tests really work like that, never bothered reading the pretty long grading policies)
Nothing about the post says anything about how many students passed or failed. Just that the lowest 25% are the lowest 25%.
Yes, A = A.
As Nougat said, this has nothing to do with passing or failing and is just a consequence of measuring performance. If 100 people take a test and the lowest 25 scorers all have a 95 out of 100 points then they are still in the bottom quartile regardless of the fact that every single student passed with flying colors.
Showing a bell curve with no context means nothing.
I’ve been graded on a curve, and I’ve done it myself a couple of times. IMO, it’s usually a sign of a bad class (too much material being crammed in) or a bad teacher (didn’t get the concepts across to the majority of the students).
That said, it’s usually done when it’s needed to prevent a significant portion of the class from failing. I remember a chem exam I took where a 16/100 was a C.
The basic idea is that grades are normally distributed (ie a bell curve) which allows you to find the average grade range and shift the letter grade (eg a C or C+). There’s some professors who take the idea too far and rather than working off of an actual normal distribution try to fit the procedure to a simply skewed distribution or use it to pull down an 85/100 to a C, but in my experience that’s the exception to the rule, especially in math/science courses.
Also, iirc this is a parody account.
But then again, 25 percent of American students are also in the top quartile on standardized tests, so it evens out.
Nice try everyone knows that the soyjack is on one end and the chad is at the other.
Fucking genius.
We need to get kids up to the Lake Woebegone standard!
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