← 返回数学题库
2935概率中等derivationmedium

Positive Mean Growth Does Not Guarantee Survival on a Given Path

题目

A branching process has mean offspring count 1.11.1 but extinction probability q=2/3q=2/3. Explain, in one or two sentences, why there is no contradiction between these two facts.

解题计时

0:00

提交作答时记录,用于后续平均用时统计。