Touchdown Probability
1. **State the problem:** We are given the number of touchdowns Luis scored in football games and the frequency of each number of touchdowns. We need to create a probability distribution table.
2. **Given data:**
| Touchdowns scored ($X$) | 0 | 1 | 2 | 3 |
| Number of games ($f$) | 6 | 10 | 7 | 5 |
3. **Formula for probability:**
The probability of each outcome is given by:
$$P(X = x) = \frac{\text{Number of games with } x \text{ touchdowns}}{\text{Total number of games}}$$
4. **Calculate total number of games:**
$$6 + 10 + 7 + 5 = 28$$
5. **Calculate probabilities for each touchdown count:**
- For $X=0$:
$$P(0) = \frac{6}{28} = \frac{3}{14} \approx 0.2143$$
- For $X=1$:
$$P(1) = \frac{10}{28} = \frac{5}{14} \approx 0.3571$$
- For $X=2$:
$$P(2) = \frac{7}{28} = \frac{1}{4} = 0.25$$
- For $X=3$:
$$P(3) = \frac{5}{28} \approx 0.1786$$
6. **Probability distribution table:**
| Touchdowns scored ($X$) | 0 | 1 | 2 | 3 |
|-------------------------|---|---|---|---|
| Probability ($P(X)$) | 0.2143 | 0.3571 | 0.25 | 0.1786 |
7. **Check sum of probabilities:**
$$0.2143 + 0.3571 + 0.25 + 0.1786 = 1.0$$
This confirms the probabilities are valid.
**Final answer:** The probability distribution table is as shown above.