close
(92朝陽企管)
How many times would you expect to roll a fair die before all 6 sides appreared at least once?
6面公平骰子都至少出現一次,投擲次數的期望值為何?
全站熱搜
(92朝陽企管)
How many times would you expect to roll a fair die before all 6 sides appreared at least once?
6面公平骰子都至少出現一次,投擲次數的期望值為何?