p********a
发帖数: 5352 | 1 ☆─────────────────────────────────────☆
lastmemory (一千零一个愿望~~~) 于 (Wed Dec 13 14:05:30 2006) 提到:
a fair coin, if it is head you win one dollar, if it is tail, you lost one
dollar, what is the expected value of winning 5 dollars or lose 3 dollars.
☆─────────────────────────────────────☆
cavine747 (痒痒挠) 于 (Wed Dec 13 15:27:27 2006) 提到:
what value?
or value for what?
☆─────────────────────────────────────☆
lastmemory (一千零一个愿望~~~) 于 (Wed Dec 13 15:54:33 2006) 提到:
My understanding is t |
|
