To find the percentage chance that farmers with rocky soil prefer growing peppers, we use the formula for relative frequency:
\[ \text{Relative Frequency} = \frac{\text{Number of farmers with rocky soil producing peppers}}{\text{Total number of farmers with rocky soil}} \]
From the data provided:
- Number of rocky soil farmers producing peppers = 150
- Total number of rocky soil farmers = 250
Now, we can calculate the relative frequency:
\[ \text{Relative Frequency} = \frac{150}{250} = 0.6 \]
To convert this into a percentage, we multiply by 100:
\[ 0.6 \times 100 = 60.0% \]
Thus, the percentage chance that farmers with rocky soil prefer growing peppers is 60.0%.
So the correct response is:
60.0%