To find the number of customers who requested carrots based on the relative frequency, you can use the formula:
\[ \text{Number of requests for carrots} = \text{Total customers} \times \text{Relative frequency of carrots} \]
In this case:
- Total customers = 50
- Relative frequency of carrots = 0.30
Now, calculate:
\[ \text{Number of requests for carrots} = 50 \times 0.30 = 15 \]
So, the correct answer is 15.