## Elementary Technical Mathematics

Published by Brooks Cole

# Chapter 4 - Section 4.2 - Precision and Greatest Possible Error - Exercise: 21

#### Answer

precision 0.001 m GPE 0.0005 m

#### Work Step by Step

The position of the last significant digit (the last zero to the right of the other significant digits and the decimal) is the thousandths place, so the precision is 0.001. The greatest possible error is half the precision. $GPE=0.5\times0.001=0.0005$

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