Each game you play is a win with probability p. You plan to play 5 games,but
if you win the fifth game then you will keep on playing until you lose.
Find the excepted number of games that you lose.
這題有人知道怎麼做嗎?
--
※ 發信站: 批踢踢實業坊(ptt.cc)
◆ From: 114.47.105.211