Enable text based alternatives for graph display and drawing entry

Try Another Version of This Question

A bag contains 2 gold marbles, 9 silver marbles, and 21 black marbles. Someone offers to play this game: You randomly select one marble from the bag. If it is gold, you win $4. If it is silver, you win $3. If it is black, you lose $1.

What is your expected value if you play this game?


Get help: Video