Expected value uses probability to tell us what outcomes to expect in the long run.
Problem 1: Board game spinner
A board game uses the spinner shown below to determine how many spaces a player will move forward on each turn. The probability is 21 that the player moves forward 1 space, and moving forward 2 or 3 spaces each have 41 probability.
Problem 2: Basketball decisions
Kayla is a basketball player who makes 50% of her 2-point shots and 20% of her 3-point shots.