Try another version of this question Get help: Box 1: Enter your answer as a number (like 5, -3, 2.2172) or as a calculation (like 5/3, 2^3, 5+4)
A bag contains 1 gold marbles, 8 silver marbles, and 25 black marbles.
Someone offers to play this game:
You randomly select one marble from the bag.
If it is gold, you win $3. If it is silver, you win $2. If it is black, you lose $1.
What is your expected value if you play this game?
$
Enter DNE for Does Not Exist, oo for Infinity -0.18