Therefore

來源: Commentate 於 2009-11-12 11:22:55 [] [舊帖] [給我悄悄話] 閱讀數 : (124 bytes)
本帖於 2009-12-19 10:42:34 時間, 由普通用戶 康MM 編輯
回答: Fun Probability Question 來源: TCT 由 都是國人 於 2009-11-09 13:44:37

If you toss 30 times you are expected to have $133.63 left
If you toss 100 times you are expected to have half penny left

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