To find the conditional relative frequency of students walking to school, given they live more than a mile away, we focus on the group of students who live 1+ miles away.
From the table:
- Total number of students who live 1+ miles away = 58
- Number of students who walk to school and live 1+ miles away = 6
The conditional relative frequency is calculated as:
\[ \text{Conditional Relative Frequency} = \frac{\text{Number of students who walk to school (1+ miles)}}{\text{Total students who live 1+ miles away}} \times 100 \]
Substituting in the values:
\[ = \frac{6}{58} \times 100 \approx 10.34% \]
Based on the options provided, the closest answer to the calculated value is 10%.