Interview Question

Interview Dublin, Co. Dublin (Ireland)

You have two games. Game A You toss one coin. Heads you win

  $1, Tails you lose $1. Game B: You toss two coins. Two Heads you win $2, two Tails you lose $2, a combination of both and you win or loss nothing. What is the Expected Value, Variance and Standard Deviation of both games? Which game would you prefer to play and why?

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