• lugal@sopuli.xyz
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        6 months ago

        There are different definitions of average and one is median

        • dream_weasel
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          6 months ago

          And at least two are not median. So at least two could have more or less than half below average instead of exactly half. Hence the use of a more specific term. On average, the colloquial use of “average” doesn’t lead to the conclusion of half a population being below average.

          • lugal@sopuli.xyz
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            6 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
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              6 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.

              • lugal@sopuli.xyz
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                6 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
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                  6 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.”

        • plandeka@lemmy.world
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          6 months ago

          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.

          • lseif@sopuli.xyz
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            6 months ago

            as @force pointed out, ‘average’ has many meanings (haha). of course a lot of the time, average is used as ‘mean’. but…not always!

          • force@lemmy.world
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            6 months ago

            Idk man looking up a definition for “average” is like

            1. 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

            1. 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

          • Resonosity@lemmy.world
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            6 months ago

            I agree with this. In my stats class in college, we never conflated average and median. They meant two different things.

          • Tabula_stercore@lemmy.world
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            6 months ago

            Such irony that this comment gets downvoted on a meme about failing education

            Even with a simple, yet very clear example

            • efstajas@lemmy.world
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              6 months ago

              What’s ironic here is your comment, lol. “Average” can and is absolutely used to say mean or median or any other average that is representative based on the dataset in question. When you ask a statistician to calculate an average of a dataset they probably won’t just go calculate the mean, they’ll think about which value is most appropriate in context.