Question

You are using a digital balance that measures mass to the ten-thousandth of a gram, but it has been calibrated incorrectly. Measurements using this apparatus will produce:

Select the correct answer below:

high accuracy but low precision
low accuracy but high precision
low accuracy and low precision
high accuracy and high precision

Answer 1

low accuracy but high precision

Accuracy and precision are two important factors to consider when taking data measurements. Both accuracy and precision reflect how close a measurement is to an actual value, but accuracy reflects how close a measurement is to a known or accepted value, while precision reflects how reproducible measurements are, even if they are far from the accepted value.

Accuracy refers to how close a measurement is to the true value and  Precision is how consistent results are when measurements are repeated.

Precise values differ from each other because of random error, which is a form of observational error.

ACcurate is Correct. (or Close to real value)

PRecise is Repeating. (or Repeatable)