A student measures the mass of a sample 3 times and gets the following results: 8.24g, 8.25 g, 8.23g?

Question

If the true mass of the sample is 3.21 g, how would you characterize the accuracy and precision of the student's measurements?

-It has high accuracy, but low precision.

-It has low accuracy, but high precision.

-It has both high accuracy and high precision.

-It has both low accuracy and low precision.

Answer 1

Hi Jassy,

If the measured measurements are close to each other they are precise. In this case the student has high precision.

If the measurements are close to real measurement they are accurate. In this problem, measured measurements are off of real measurements so poor accuracy.

So it has a low accuracy, high precision.