Question

Find the greatest possible error for the measurement 0.991 g. A. 0.001 g B. 0.1 g C. 0.005 g D. 0.0005 g

Answer 1

The answer is D.

0.991 could have been rounded to the nearest thousandth, so the greatest possible error must be five ten thousandths, or 0.0005, since we always round up if the number is 5 or more or round down if the number is less than 5.