Final answer:
The term for the accuracy of a measured or estimated value compared to its actual value is Accuracy.
Step-by-step explanation:
The correct term for the accuracy of a measured or estimated value compared to its actual value is Option 4: Accuracy. Accuracy is a measure of how close a measurement is to the correct or accepted value. It represents how well a measurement reflects the true value of a quantity.
For example, if you are measuring the length of a standard computer paper and the packaging states that it is 11.0 inches long, an accurate measurement would be close to that value, such as 10.9 inches, while an inaccurate measurement would be significantly different, such as 12 inches.