5948概率简单数值题short
Empty Mailboxes
题目
10 letters are placed independently and uniformly at random into 8 mailboxes. What is the expected number of mailboxes that remain empty?
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
题目
10 letters are placed independently and uniformly at random into 8 mailboxes. What is the expected number of mailboxes that remain empty?
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