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Can you help me solve these 2 questions please? Thank you!Q9-10.jpg

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Q9-10.jpg

Use the information below for questions 9-10. When in Germany, Amy was considering playing
a game of roulette with 18 red, 18 black, and 1 green slots. The chances of the ball stopping at
each slot is equal. Amy can place bets on red or black. If the ball stops on Amy's color, she doubles
her money. Otherwise, her money is lost.

Q9-10(2).jpg

Q9. Suppose she bets $6 on red on a single round. What is the expected value and standard
deviation of her total winnings?
(1.5 points)
Q10. Suppose she bets $2 on red in three different rounds. What is the expected value and standard
deviation of her total winnings?
(1.5 points)

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