Question

Raul and Christina are playing a game. They spin a spinner with 8 equal sections numbered 1 through 8. When the spinner lands on a player's section, that player earns a point. They have come up with four games each with different sets of rules to determine which player has each section.



Move the options to the spaces to show whether each game is mathematically fair or not fair.

Response area with 4 blank spaces
Game Rules Fair or Not Fair
1 If they spin an odd number Raul wins, otherwise Christina wins.
Blank space 6 empty

2 If they spin a 1, 2, 7 or 8 Raul wins, otherwise Christina wins.
Blank space 7 empty

3 If they spin a 1, 2, 3, 4 or 8 Raul wins, otherwise Christina wins.
Blank space 8 empty

4 If they spin 6, 7 or 8 Raul wins, otherwise Christina wins.
Blank space 9 empty


Answer options with 2 options.

Answer 1

Game 1: Fair (Raul wins on 1,3,5,7 — 4 of 8)

Game 2: Fair (Raul wins on 1,2,7,8 — 4 of 8)

Game 3: Not fair (Raul wins on 1,2,3,4,8 — 5 of 8)

Game 4: Not fair (Raul wins on 6,7,8 — 3 of 8)