Aatikah plans to buy books at a book fair. She thinks she will need $30.00 to purchase the books. She only spent $19.75. Find the percent error in her prediction. Round your answer to the nearest whole number.
A. 2%
B. 1%
C. 58%
D. 52%
Please select one of the options
To find the percent error, we use the formula:
Percent error = (|Observed value - Expected value| / Expected value) * 100
In this case, the observed value is $19.75 and the expected value is $30.00.
Percent error = (|19.75 - 30.00| / 30.00) * 100
Percent error = (|-10.25| / 30.00) * 100
Percent error = (10.25 / 30.00) * 100
Percent error ≈ 0.3417 * 100
Percent error ≈ 34.17
Rounded to the nearest whole number, the percent error is 34%.
Therefore, the correct answer is not listed in the options provided.