Question

suppose a student is offered a chance to draw a card from ordinary deck of 52 playing cards and win $10 if he or she draws an ace, $ 2 for a King, and $1 for a queen. If $2 must be paid to play the game, what is the expected winnings every time the game is played by the students?

Answer 1

10*1/13 + 2*1/13 + 1*1/13 - 2 = -1

better go back to class and stop gambling