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You roll a die, winning nothing if the number of spots is odd, $1 for...

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Basic Math

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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 $7 for a 6.Round your answers to 3 decimal places (a) Find the expected value and standard deviation of your prospective winnings.The expected value is ..., the standard deviation is ...(b) You play twice. Find the mean of your total winnings.

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