Final answer:
To calculate the percent error, subtract the actual value from the estimated value, take the absolute value of the difference, divide it by the actual value, and multiply by 100%.
Step-by-step explanation:
To calculate the percent error, we need to compare the actual value to the estimated value. In this case, Jimmy thought he purchased 7 folders, but he actually purchased 6. The percent error can be calculated using the formula:
Percent Error = (|Actual Value - Estimated Value| / Actual Value) x 100%
Plugging in the values, we get:
- Absolute difference = |7 - 6| = 1
- Percent Error = (1 / 7) x 100% = 14.29%
Therefore, Jimmy's percent error is 14.29%.