2933概率中等derivationmedium
Variance Recursion across Generations
题目
Let a branching process have offspring mean and variance . Show that \[ \mathrm{Var}(Z_{n+1})=m^2\mathrm{Var}(Z_n)+\sigma^2 E[Z_n]. \]
解题计时
0:00
提交作答时记录，用于后续平均用时统计。
题目
Let a branching process have offspring mean and variance . Show that \[ \mathrm{Var}(Z_{n+1})=m^2\mathrm{Var}(Z_n)+\sigma^2 E[Z_n]. \]
解题计时
0:00
提交作答时记录，用于后续平均用时统计。