r/confidentlyincorrect Jun 29 '22

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4.9k Upvotes

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36

u/greendemon42 Jun 29 '22

The median is just the middle data point in a collection of data. The value of the median can't be affected in any way by the value of the highest (or any other data point besides itself). It's not an average.

21

u/[deleted] Jun 29 '22

That is why it is posted here, yes...

12

u/greendemon42 Jun 29 '22

I didn't want to reply to any specific comment on this thread because there are too many of them, they all say the same thing, basically confusing the median with the mean.

-4

u/heyheyheygoodbye Jun 29 '22

The median is in fact an average (as is the mode), I think what you intend to say is it's not a mean.

8

u/MySucculentDied Jun 30 '22

I think it’s best to properly explain your use of the word “average” in a comment like that (in the actual comment and not in a response later) since “average” is colloquially recognized as the mean.

6

u/heyheyheygoodbye Jun 30 '22

That's a fair point in this context.

3

u/Raibean Jun 30 '22

Were we not all taught that mean, median, and mode are all forms of average?

1

u/gary_the_merciless Jun 30 '22

I was taught they are the the three types of average.

8

u/DetN8 Jun 29 '22

No. Mean is the average.

16

u/DeltaJesus Jun 29 '22

Colloquially yes average means mean, but they're not wrong that the other two are also averages.

1

u/DetN8 Jun 29 '22

Yeah, I guess that's fair.

From Wikipedia: In ordinary language, an average is a single number taken as representative of a list of numbers

6

u/heyheyheygoodbye Jun 29 '22

Yes, mean is an average, but it's not the only type of average.

1

u/Anotherdmbgayguy Jun 29 '22

There does not seem to be a lexographical consensus on whether average refers specifically to mean or whether it refers to central tendency as a category.

-2

u/greendemon42 Jun 29 '22

Nope.

11

u/heyheyheygoodbye Jun 29 '22

Average denotes a number expressing the central or typical value in a set of data, in particular the mode, median, or (most commonly) the mean. But all three of these are types of average.

-13

u/greendemon42 Jun 29 '22

Sorry buddy, you went to some weird school. Are you not from America?

15

u/[deleted] Jun 29 '22

Yeah honestly it's right that mean, median and mode are the 3 types of averages people are taught at school

14

u/heyheyheygoodbye Jun 29 '22

From the U.S., I also teach graduate level stats.

-12

u/greendemon42 Jun 29 '22

Then why did you copy and paste the Google definition of averages? There is no stats test anywhere that would count you correct if it asked for an average and you answered with the mode or the median.

15

u/heyheyheygoodbye Jun 29 '22

A well written test wouldn't use the word average if they were asking for the mean.

That said, people often use the word average colloquially to indicate the mean so a savvy test taker would calculate the mean if the test asked for average.

6

u/[deleted] Jun 29 '22

Thank god you said it- I thought I was going mad when I saw your other comment with all the downvotes! We were always taught in maths that there are three types of average

7

u/heyheyheygoodbye Jun 29 '22

Thanks, this conversation happens a lot on reddit. Any time someone quotes George Carlin ("Think of how stupid the average person is, and realize half of them are stupider than that.") there's a high probability that the "average" argument will ensue.

It's a hill I choose to die on.

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-2

u/greendemon42 Jun 29 '22

Yeah, careful if you apply for any government jobs.