To determine the percentage of farmers with sandy soil who prefer producing carrots, we can use the given data:
- Farmers with sandy soil who prefer carrots: 120
- Farmers with sandy soil who prefer peppers: 50
- Total farmers with sandy soil: 170
Now, we can calculate the relative frequency of farmers with sandy soil who prefer carrots:
\[ \text{Relative Frequency} = \frac{\text{Farmers with Sandy Soil who prefer Carrots}}{\text{Total Farmers with Sandy Soil}} \times 100 \]
Plugging in the numbers:
\[ \text{Relative Frequency} = \frac{120}{170} \times 100 \]
Calculating that:
\[ \text{Relative Frequency} = 0.70588235 \times 100 \approx 70.6% \]
Thus, the percentage chance that farmers with sandy soil prefer to grow carrots is approximately 70.6%.
So the correct answer is: 2. 70.6%