A chemist estimated the volume of a solution in a test tube to be 30 . The actual volume of the solution was 28.1

Question

A chemist estimated the volume of a solution in a test tube to be 30ml . The actual volume of the solution was 28.1ml . Find the absolute error and the percent error of the chemist's estimate. round your answers to the nearest tenth.

Answer 1

Absolute error:

 

(estimated) - (actual) = (30 - 28.1) ml = 1.9 ml

 

% error:

 

(100%) [(estimated) - (actual)] / (actual) = (100%)(30 - 28.1) / 28.1 ≅ 6.8%