Gog is offered the following wager by Magog. For a payment of $10, Gog can blindfolded draw a single marble from an urn containing ten marbles. Eight marbles are green and two are red. If Gog selects the green marble, he wins $500. If he draws a red marble, he loses $125. The expected value of this gamble is:
A) !$10.
B) $0.
C) $10.
D) $90.
E) $100.

Question

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The Answer of Gog is offered the following wager by Magog. For a payment of $10, Gog can blindfolded draw a single marble from an urn containing ten marbles. Eight marbles are green and two are red. If Gog selects the green marble, he wins $500. If he draws a red marble, he loses $125. The expected value of this gamble is:
A) !$10.
B) $0.
C) $10.
D) $90.
E) $100.

Gog Is Offered the Following Wager by Magog