Mathematics, 17.10.2021 14:00, eleaanastasiawo

You roll a die, winning nothing if the number of spots is odd, $3 for a 2 or a 4, and $10 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.

The mean is

Answers: 1

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You roll a die, winning nothing if the number of spots is odd, $3 for a 2 or a 4, and $10 for a 6....