Question

Which game isn't fair for two players to play?

A number cube is rolled. Player 1 gets a point for the numbers 3 or less, and player 2 gets a point for the numbers 4 or higher.

A coin is flipped. Player 1 gets a point for heads side up, while player 2 gets a point for tails side up.

A number cube is rolled. Player 1 gets a point for an even number, and player 2 gets a point for an odd number.

A number cube is rolled. Player 1 gets a point for any number that is 3 or higher, and player 2 gets a point for any number less than 3

Answer 1

The last game wouldn't be fair for two players to play.

If a number cube is rolled and Player 1 gets a point for any number that is 3 or higher and Player 2 gets a point for any number less than 3 it wouldn't be fair to Player 2 because Player 1 has a higher chance of getting points because he/she has more opportunities.

Answer 2

The fourth one, because player 1 has a greater chance of winning (4/6=2/3) than player 2 (2/6=1/3).