674概率中等derivationmedium
Scaled-Step Exit Time 2
题目
A fair random walk starts at 4 and moves by +4 or -4 with equal probability each step. It stops when it first hits 0 or 16. What is the expected stopping time?
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提交作答时记录，用于后续平均用时统计。
你的答案
题目
A fair random walk starts at 4 and moves by +4 or -4 with equal probability each step. It stops when it first hits 0 or 16. What is the expected stopping time?
解题计时
0:00
提交作答时记录，用于后续平均用时统计。
你的答案