Question

In a dice game if you roll a 2, 4, or 6 you get the value of the die. If you roll as 1, 3, or 5 you lose $5. What is the expected value of the game?
Please Need help

Answer 1

Answer: -$0.5

Step-by-step explanation:

event        Probability

+ $2                 1/6

+ $4                 1/6

+ $6                 1/6

- $5                 3/6

E(X) = (2*1/6)+(4*1/6)+(6*1/6)+(-5*3/6) = -$0.5