A game. 3 coins. If you roll 3 heads, you get $15. If you roll 3 tails, you get $10. If you done get either of those things, you lose $5. This is what I did... 15(.125) + 10(.125) - 5(.75) Is this right?
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Originally Posted by Morgan82 A game. 3 coins. If you roll 3 heads, you get $15. If you roll 3 tails, you get $10. If you done get either of those things, you lose $5. 15(.125) + 10(.125) - 5(.75) Is this right? Yes, that is the expected value.
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