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%
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%
To calculate the percent error, we need to find the difference between the predicted number of attendees and the actual number of attendees, and then express that difference as a percentage of the predicted value.
The predicted number of attendees was 276 and the actual number of attendees was 265.
The difference between the predicted and actual number of attendees is 276 - 265 = 11.
To express this difference as a percentage of the predicted value, we divide the difference by the predicted value and multiply by 100.
(11 / 276) * 100 = 3.98550724637
Rounded to the nearest hundredth percent, this is approximately 3.99%.
Therefore, the correct answer is 3.99%, which is not listed as one of the options given.
To find the percent error in their prediction, we need to compare the predicted number of attendees with the actual number of attendees.
1. Start by calculating the predicted number of attendees: 276
2. Calculate the actual number of attendees: 265
3. Find the difference between the predicted and actual values: 276 - 265 = 11
4. Divide the difference by the predicted value and multiply by 100 to get the percent error: (11 / 276) * 100 = 3.98%
Round the answer to the nearest hundredth percent: 3.98%
Therefore, the correct answer is 3.98%, which is not one of the given options.