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[-] lugal@sopuli.xyz 14 points 10 months ago

There are different definitions of average and one is median

[-] Kazumara@discuss.tchncs.de 3 points 10 months ago

Yes, and therefore the original comment was wrong and needed to be corrected.

[-] lugal@sopuli.xyz 14 points 10 months ago

No, it wasn't wrong because it didn't specify which average was meant. If it was "arithmetic average", it would be wrong.

[-] Lemmeenym@lemm.ee 7 points 10 months ago

It would still be right. The test results are reported on a normalized curve so all measures of central tendency are all equal.

[-] Kazumara@discuss.tchncs.de 1 points 10 months ago

If you don't specify then the statement needs to hold for all averages to be correct.

[-] lugal@sopuli.xyz 8 points 10 months ago

"I have a ball"
"So you have a red ball?"
"No, it's green"
"If you don't specify then the statement needs to hold for all balls to be correct."

And by the way: for the given plot, it is correct for all averages

[-] Kazumara@discuss.tchncs.de 1 points 10 months ago* (last edited 10 months ago)

More like

"Balls are orange"
"That's wrong"
"Ah but basketballs are balls and they are orange, gotcha"
"No, you just said balls, that's too generic, if you meant basket balls you should have said basket balls."

[-] GildorInglorion@lemmy.world 3 points 10 months ago

not all basketballs are orange

[-] Kazumara@discuss.tchncs.de 1 points 10 months ago

Who cares? Everyone understands the example anyway.

[-] lugal@sopuli.xyz 1 points 10 months ago

But the average basketball is

[-] lugal@sopuli.xyz 1 points 10 months ago

The comment said "below average", not "below averages"

[-] Kazumara@discuss.tchncs.de 1 points 10 months ago

Doesn't matter for the issue at hand, that's just a question of language relating to the example. A different example:

"A set always has a maximal element under the larger-than relation for numbers"
"That's wrong"
"Ah but any set of natural numbers has a maximal element, that is also a set, gotcha"
"No, you just said set, that's too generic, if you meant any set of natural numbers you should have said that."

[-] lugal@sopuli.xyz 1 points 10 months ago

"You're as stubborn as my brother"
"But your younger brother isn't stubborn at all"
"I was talking about my older brother"

[-] Kazumara@discuss.tchncs.de 1 points 10 months ago

The average is a generic concept covering multiple more specific concepts like mean and median. If you say something about the generic concept it should not depend on any properties of just one of the specific concepts, in order to hold generally.

Your brother is a term for a single person that is simply under-determined and could turn out to apply to either one, but not both. What you say about your brother should apply to the brother you mean, in order to hold.

[-] lugal@sopuli.xyz 1 points 10 months ago

I don't even understand what you mean. If it covers more than one concept that can contradict each other, how can you expect that it is true for all of them?

Take the set 1, 7, 10. When I say the average is 7, you can say "no, the mean is 6" and when I say the average is 6 you will answer "no, the median is 7"

this post was submitted on 15 May 2024
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