Question

you measure the mass of an apple using a balance. you get these three measurements: trial 1: 167.0 g trial 2: 166.9 g trial 3: 167.2 g you know that the true mass of the apple is 172 g. describe your results in terms of precision and accuracy. explain your answer.

Explanation:

Accuracy refers to how close a measurement is to the true value. Precision refers to how close repeated measurements are to each other. The measured values (167.0 g, 166.9 g, 167.2 g) are close to each other, so the precision is high. However, they are not close to the true mass of 172 g, so the accuracy is low.

Answer:

The measurements are precise but not accurate. The repeated measurements are close to one another (precision), but they are far from the true mass of the apple (low - accuracy).