To find the conditional relative frequency of students walking to school, given that they live more than a mile away, we need to look at the number of students who live more than a mile away and walk to school.
From the table:
- The total number of students who live more than a mile away is 58.
- The number of students who live more than a mile away and walk to school is 6.
To find the conditional relative frequency, we use the formula:
\[ \text{Conditional relative frequency} = \frac{\text{Number of students who walk and live more than a mile away}}{\text{Total number of students who live more than a mile away}} \times 100 \]
Substituting the values we have:
\[ \text{Conditional relative frequency} = \frac{6}{58} \times 100 \approx 10.34% \]
Rounding this to the nearest whole number gives approximately 10%.
Thus, the correct answer is 10%.