Aatikah plans to buy a book at a book fair she think she will need $30 to purchase the books she only spends $19.75. Find the percent error in her prediction round your answer to the nearest whole number.
52%
2%
58
1%
To find the percent error in Aatikah's prediction, we first need to calculate the difference between her predicted cost ($30) and the actual cost ($19.75).
Difference = Predicted cost - Actual cost
Difference = $30 - $19.75
Difference = $10.25
Now, to find the percent error, we divide the difference by the actual cost and then multiply by 100:
Percent Error = (Difference / Actual cost) * 100
Percent Error = ($10.25 / $19.75) * 100
Percent Error ≈ 51.9
Since we need to round the answer to the nearest whole number, the percent error is approximately 52%.
To find the percent error in Aatikah's prediction, we can use the formula:
Percent Error = [(Observed Value - Predicted Value) / Predicted Value] x 100
Given that the predicted value is $30 and the observed value is $19.75, we can substitute these values into the formula:
Percent Error = [(19.75 - 30) / 30] x 100
Calculating this expression:
Percent Error = [-10.25 / 30] x 100
Percent Error = -0.3416666667 x 100
Percent Error = -34.16666667
Rounding this to the nearest whole number:
Percent Error = -34
Therefore, the percent error in Aatikah's prediction is 34%.
To find the percent error, we need to calculate the difference between the predicted cost and the actual cost, divide by the predicted cost, and then multiply by 100:
Percent Error = (|actual cost - predicted cost| / predicted cost) * 100
Percent Error = (|19.75 - 30| / 30) * 100
Percent Error = (| -10.25| / 30) * 100
Percent Error = (10.25 / 30) * 100
Percent Error ≈ 0.3416666667 * 100 ≈ 34.16666667
Rounding to the nearest whole number, the percent error is 34%.