Repeating readings is appropriate when:

  1. a single reading is perfect
  2. a reading can't vary at all
  3. random variations are likely, e.g. timing by hand
  4. it is unsafe to repeat
Answer

C) random variations are likely, e.g. timing by hand

Judgement. SLO P-11-N-09 · Application

Physics MCQ · More Experimental Skills and Data Analysis MCQs · Practise