Final answer:
b. accuracy. The extent in which measurements agree with the true values of the quantity being measured is known as accuracy.
Step-by-step explanation:
The extent in which measurements agree with the true values of the quantity being measured is known as:
- Accuracy: Accuracy refers to how close a measurement is to the true or accepted value. It is a measure of correctness.
- Precision: Precision refers to how close repeated measurements are to each other. It is a measure of consistency and reproducibility.
In this case, the correct answer is b. accuracy as it specifically refers to the agreement with the true values.