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Question
in a game, the players spin a spinner with 6 equal sections numbered 1 through 6. the table shows three versions of the game with different sets of rules to decide who earns points on a spin. move the options to the spaces to show whether or not each version of the game is mathematically fair.
| game | player 1 wins | player 2 wins | fair or not fair? |
|---|---|---|---|
| 2 | if the spinner shows 1 or 2. | if the spinner shows 3 through 6. | |
| 3 | if the spinner shows 1 through 4. | if the spinner shows a 5 or 6. |
options: fair, not fair (below the table)
To determine if each game is fair, we check if the probability of Player 1 winning equals the probability of Player 2 winning. The spinner has 6 equal sections (1–6).
Game 1
- Player 1 Wins: Odd numbers (1, 3, 5) → 3 outcomes.
Probability: $\frac{3}{6} = \frac{1}{2}$.
- Player 2 Wins: Even numbers (2, 4, 6) → 3 outcomes.
Probability: $\frac{3}{6} = \frac{1}{2}$.
- Since $\frac{1}{2} = \frac{1}{2}$, Game 1 is Fair.
Game 2
- Player 1 Wins: 1 or 2 → 2 outcomes.
Probability: $\frac{2}{6} = \frac{1}{3}$.
- Player 2 Wins: 3–6 → 4 outcomes (3, 4, 5, 6).
Probability: $\frac{4}{6} = \frac{2}{3}$.
- Since $\frac{1}{3}
eq \frac{2}{3}$, Game 2 is Not Fair.
Game 3
- Player 1 Wins: 1–4 → 4 outcomes.
Probability: $\frac{4}{6} = \frac{2}{3}$.
- Player 2 Wins: 5 or 6 → 2 outcomes.
Probability: $\frac{2}{6} = \frac{1}{3}$.
- Since $\frac{2}{3}
eq \frac{1}{3}$, Game 3 is Not Fair.
Final Table
| Game | Player 1 Wins | Player 2 Wins | Fair or Not Fair? |
|---|---|---|---|
| 2 | 1 or 2 | 3–6 | Not Fair |
| 3 | 1–4 | 5 or 6 | Not Fair |
(To complete the task, move "Fair" to Game 1’s "Fair or Not Fair?" column, and "Not Fair" to Games 2 and 3’s columns.)
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To determine if each game is fair, we check if the probability of Player 1 winning equals the probability of Player 2 winning. The spinner has 6 equal sections (1–6).
Game 1
- Player 1 Wins: Odd numbers (1, 3, 5) → 3 outcomes.
Probability: $\frac{3}{6} = \frac{1}{2}$.
- Player 2 Wins: Even numbers (2, 4, 6) → 3 outcomes.
Probability: $\frac{3}{6} = \frac{1}{2}$.
- Since $\frac{1}{2} = \frac{1}{2}$, Game 1 is Fair.
Game 2
- Player 1 Wins: 1 or 2 → 2 outcomes.
Probability: $\frac{2}{6} = \frac{1}{3}$.
- Player 2 Wins: 3–6 → 4 outcomes (3, 4, 5, 6).
Probability: $\frac{4}{6} = \frac{2}{3}$.
- Since $\frac{1}{3}
eq \frac{2}{3}$, Game 2 is Not Fair.
Game 3
- Player 1 Wins: 1–4 → 4 outcomes.
Probability: $\frac{4}{6} = \frac{2}{3}$.
- Player 2 Wins: 5 or 6 → 2 outcomes.
Probability: $\frac{2}{6} = \frac{1}{3}$.
- Since $\frac{2}{3}
eq \frac{1}{3}$, Game 3 is Not Fair.
Final Table
| Game | Player 1 Wins | Player 2 Wins | Fair or Not Fair? |
|---|---|---|---|
| 2 | 1 or 2 | 3–6 | Not Fair |
| 3 | 1–4 | 5 or 6 | Not Fair |
(To complete the task, move "Fair" to Game 1’s "Fair or Not Fair?" column, and "Not Fair" to Games 2 and 3’s columns.)