ulian and Brittany mailed 275 wedding invitations to family and friends and predicted that they would all attend. Only 265 out of 275 people committed to attending the wedding. Calculate the percent error in their prediction. Round your answer to the nearest hundredth percent.
To calculate the percent error, we need to find the difference between the predicted value and the actual value, divide it by the actual value, and multiply by 100.
The predicted value is 275, and the actual value is 265.
The difference between the predicted and actual values is 275 - 265 = 10.
Now, we can calculate the percent error using the formula:
Percent Error = (|Predicted Value - Actual Value| / Actual Value) * 100
Percent Error = (|275 - 265| / 265) * 100
Percent Error = (10 / 265) * 100
Calculating the value:
Percent Error = 0.0377 * 100
Percent Error ≈ 3.77%
Therefore, the percent error in their prediction is approximately 3.77%.
To find the percent error, we need to compare the predicted value (275) with the actual value (265).
The formula for percent error is:
Percent Error = (|Predicted Value - Actual Value| / Actual Value) * 100%
Plugging in the values:
Percent Error = (|275 - 265| / 265) * 100%
Simplifying:
Percent Error = (10 / 265) * 100%
Calculating the division:
Percent Error = 0.037735849056603776...
Rounding to the nearest hundredth percent:
Percent Error ≈ 0.04%
Therefore, the percent error in their prediction is approximately 0.04%.
To calculate the percent error in their prediction, we need to find the difference between the predicted number of attendees (275) and the actual number of attendees (265).
First, let's calculate the difference:
Difference = Predicted - Actual
Difference = 275 - 265
Difference = 10
Next, we need to find the percent error. The formula for percent error is (|Difference| / Predicted) * 100.
Percent Error = (|Difference| / Predicted) * 100
Percent Error = (|10| / 275) * 100
Percent Error = (10 / 275) * 100
Percent Error ≈ 3.64%
Therefore, the percent error in their prediction is approximately 3.64%.