Expected winnings are earnings minus cost
Earnings:
9* 1/6 + 0 * 1/6 + 0*1/6 + 0*1/6 + 0 * 1/6 + 9 * 1/6
9/6+9/6 = 18/6 = 3
Winnings:
earnings - cost =3-3 = 0
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