Jullan and Britany mailed 276 wedding invitations to family and friends and predicted that they would all attend. Only 265 out of 276 people committed to attending the wedding. Calculate the percent error in their prediction. Round your answer to the nearest hundredth percent. (1 point)

O-4.00%

O 3.77%

O 3.63%

0.035%

1 answer

The predicted number of attendees was 276. The actual number of attendees was 265. To find the percent error, we need to subtract the actual value from the predicted value, divide by the predicted value, and then multiply by 100 to get the percentage.

Percent Error = ((Predicted Value - Actual Value) / Predicted Value) * 100
= ((276 - 265) / 276) * 100
= (11 / 276) * 100
= 0.039855072 * 100
= 3.99

Rounded to the nearest hundredth percent, the percent error is 3.99%.

Therefore, the correct answer is:
O 3.99%