[理工] [機率]99台大電子甲
機率第一題
1.Toss 3 dice.Let Z be the median of the results.E[Z]=?
有人能提供好想法嗎??
希望高手指教瞜
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推
02/15 16:42, , 1F
02/15 16:42, 1F
→
02/15 16:43, , 2F
02/15 16:43, 2F
→
02/15 16:43, , 3F
02/15 16:43, 3F
推
02/15 17:01, , 4F
02/15 17:01, 4F
→
02/15 20:58, , 5F
02/15 20:58, 5F
→
02/15 20:58, , 6F
02/15 20:58, 6F
→
02/15 20:59, , 7F
02/15 20:59, 7F
→
02/15 22:51, , 8F
02/15 22:51, 8F
推
02/15 23:20, , 9F
02/15 23:20, 9F
→
02/15 23:21, , 10F
02/15 23:21, 10F
→
02/15 23:21, , 11F
02/15 23:21, 11F
推
02/16 00:56, , 12F
02/16 00:56, 12F
推
02/16 01:08, , 13F
02/16 01:08, 13F
→
02/16 08:05, , 14F
02/16 08:05, 14F
→
02/16 08:05, , 15F
02/16 08:05, 15F
→
02/16 08:06, , 16F
02/16 08:06, 16F
→
02/16 08:08, , 17F
02/16 08:08, 17F
→
02/16 08:08, , 18F
02/16 08:08, 18F
推
02/16 22:36, , 19F
02/16 22:36, 19F
→
09/11 14:16, , 20F
09/11 14:16, 20F