alt Hacker NewsIt is the same as wealth, or any dataset that has large data outliers on one side.
Average and mean are the same: normal distribution. Average higher than mean: skewed by big outliers.
Professional statistician affects the distribution of statistics knowledge like billionaires affect wealth distribution.
Congrats for having a shot, sadly that doesn't answer the questions posed in the slightest.
Again, why does the GP assume that a full half are distinctly lower than "average understanding" ? Why the assumption that multiple numbers cannot share an average understanding?