No, a median isn't a form of average, and neither is a mode. Both median and mode are mathematically distinct from an average, and only mean is definitively equivalent to average. When calculating the value of a mean, mode and median return the same number with normal distributions, but that doesn’t mean that a mode or median is in a type of average.
You went to all the effort to type out the difference between mean, median, and mode under the incorrect assumption that only mean can be average, when a simple google search would have saved you the trouble
Any percent can be above average(as long as its not 100%) if there are exteme outliers. For example the average us income is $60k while the median(the most common) is 30k. Source: i just searched it. But you get it. In this memes case its incorrect because iq is a bell curve.
Statisticians and smarter people, please correct me if I am wrong since my only experience is one statistics class in college, but this could be true if you have a lot of extreme outliers on the lower end than the upper end.
Averages are just that - an average. If you have 1000 people and 750 of them have IQs below 60 and the rest have “normal” IQs, then your average will skew to the lower IQs. I would wager median and mode would be better for this kind of stuff.