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OpenStudy (anonymous):
In a dice game, you win if the two dice come up 11. Otherwise, you lose $1. What should be the profit for winning to make this game fair?
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OpenStudy (anonymous):
do you know what the probability is you get an 11 on the sum of two dice?
OpenStudy (anonymous):
I do not
OpenStudy (anonymous):
lol what did you do, turn around?
OpenStudy (anonymous):
ok there are two different ways to roll an 11, \((6,5)\) and \((5,6)\)
out of the 36 possible rolls
probability it \(\frac{2}{36}=\frac{1}{18}\)
OpenStudy (anonymous):
I knew there were 2 ways i just didn't know what to do with it lol
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OpenStudy (anonymous):
we are not done yet
OpenStudy (anonymous):
I know
OpenStudy (anonymous):
17 out of 18 times you lose $1 so you better win $17 when you do roll an 11
OpenStudy (anonymous):
you can think of it this way
roll 18 times, you lost 17 times and win once
so you lose $17 and therefore you have to win $17 to break even
OpenStudy (anonymous):
Ahh...okay. Sorry I'm really bad at math if you can't tell..
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OpenStudy (anonymous):
wasn't that hard though, was it ?
OpenStudy (anonymous):
not too bad
OpenStudy (anonymous):
lol
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