To find the percent error of Layla’s prediction, we use the formula for percent error:
\[ \text{Percent Error} = \left( \frac{|\text{Actual Value} - \text{Predicted Value}|}{\text{Actual Value}} \right) \times 100 \]
In this case:
- The actual value (full capacity of the stadium) is 81,500 seats.
- The predicted value (Layla's belief) is 79,000 seats.
Now, we calculate the absolute error:
\[ |\text{Actual Value} - \text{Predicted Value}| = |81,500 - 79,000| = 2,500 \]
Next, we calculate the percent error:
\[ \text{Percent Error} = \left( \frac{2,500}{81,500} \right) \times 100 \]
Calculating this gives:
\[ \text{Percent Error} = \left( 0.0307 \right) \times 100 \approx 3.07% \]
Thus, the percent error of Layla’s prediction, rounded to the nearest hundredth of a percent, is:
3.07%
So, the correct response is:
3.07%