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)
A. 58%
B. 1%
C. 52%
D. 2%
To find the percent error, we can use the formula:
Percent Error = ((Observed value - Expected value) / Expected value) x 100%
In this case, the observed value is $19.75 and the expected value is $30.00.
Plugging in the values into the formula:
Percent Error = ((19.75 - 30) / 30) x 100%
Percent Error = (-10.25 / 30) x 100%
Percent Error ≈ -0.34 x 100%
Percent Error ≈ -34%
Rounding to the nearest whole number, the percent error is -34%.
Since percent error cannot be negative, we take the absolute value to get the positive value of 34%.
Therefore, the answer is 34%.
None of the given options match the correct answer.