Aatikah plans to buy books at a book fair. She thinks she will need $30.00 to purchase the books. She only spends $19.75. Find the percent error in her prediction. Round your answer to the nearest whole number.(1 point)
Responses
1%
1%
52%
52%
58%
58%
2%
The percent error is given by the formula:
Percent Error = (|Predicted Value - Observed Value| / Predicted Value) * 100%
In this case, the predicted value is $30.00 and the observed value is $19.75. Plugging in these values into the formula, we get:
Percent Error = (|30.00 - 19.75| / 30.00) * 100%
= (10.25 / 30.00) * 100%
= 0.3416666667 * 100%
= 34.17%
Rounding the answer to the nearest whole number, the percent error is 34%. Answer: 34%.