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please help me. You roll a die, winning nothing if the number of spots is odd, $1 for a 2 or a 4, and $5

please help me.

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You roll a die, winning nothing if the number of spots is odd, $1 for a 2 or a 4, and $5 for a 6. Round your answers to 3 decimal places (a) Find the expected value and standard deviation of prospective winnings. The expected value is 3.5 . the standard deviation is 2.867 (b) You play twice. Find the mean of your total winnings. The mean is Check Apower 9 ace 96

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