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April 20, 2014

April 20, 2014

Posted by **Tara** on Wednesday, January 5, 2011 at 5:43pm.

- math -
**Marth**, Wednesday, January 5, 2011 at 6:10pmYou gain $3 if you get a 6, and always pay $0.90.

E[X] = (1/6)*3 - $0.90

- math -
**Reiny**, Wednesday, January 5, 2011 at 6:13pmprob of rolling a 6 = 5/36

( ways to get a 6 : [5,1 ; 4,2 ; 3,3 ; 2,4 ; 1,5 ] )

expected value = $3.00(5/36) = .41666 or 42 cents

Would you pay 90 cents for a game that has an expected value of 42 cents?

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