There is an equally likely chance that a falling dart will land anywhere on the rug below. The following system is used to find the number of points the player wins. What is the expected value for the number of points

Question

won?Black = 40
points
Gray = 20 points
White = 0 points

Answer 1

3 colours, so prob each colour = 1/3

expected number of points
= (1/3)(40) + (1/3)(20) + (1/3)(0)
= 20

Answer 2

What they said

Answer 3

24