Mrs. Nord and Mrs. Schulz went on a school field trip and estimated that 40 students would be there. There were 32 students that attended.

Question

What was their percent error?

25%
8%
80%
1.25%

which answer is correct

Answer 1

To calculate the percent error, you can use the formula:

\[ \text{Percent Error} = \left( \frac{|\text{Estimated Value} - \text{Actual Value}|}{\text{Estimated Value}} \right) \times 100 \]

In this case:

• Estimated Value = 40 students
• Actual Value = 32 students

Calculating the absolute error:

\[ |\text{Estimated Value} - \text{Actual Value}| = |40 - 32| = 8 \]

Now plug this into the formula:

\[ \text{Percent Error} = \left( \frac{8}{40} \right) \times 100 = 0.2 \times 100 = 20% \]

It seems that none of the provided options (25%, 8%, 80%, 1.25%) match the calculated percent error of 20%.

Please double-check the options or the values provided to confirm. If we consider the breakdown of options presented, it indicates that the calculation based on given estimates leads to 20% which appears to be omitted in the available choices.