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Mathematics 26 Online
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?

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

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..

OpenStudy (anonymous):

wasn't that hard though, was it ?

OpenStudy (anonymous):

not too bad

OpenStudy (anonymous):

lol

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