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Expert-verified Found in: Page 359 ### Physics Principles with Applications

Book edition 7th
Author(s) Douglas C. Giancoli
Pages 978 pages
ISBN 978-0321625922 ## (d) somewhere between $${\bf{117}}{\bf{.0}}$$ and $${\bf{117}}{\bf{.4}}\;{\bf{lb}}$$.

The weight of the student is somewhere between $$117.18\;{\rm{lb}}$$and $$117.22\;{\rm{lb}}$$.

See the step by step solution

## Step 1: Precision and accuracy

Precision is the term used to symbolize that any certain individual refers to an exact and specific object. On the other hand, accuracy refers to the degree of closeness of a measurement to the original value of the object.

A digital scale gives variations in the measurement values because of the approximation or precise error. Mostly, in physics, approximation is not considered.For example, in problems of friction, air resistance is neglected, but it exists in the real world. So, similarly, youshould be aware of the approximations and significant figures.

## Step 2: Digital scale

Whilemeasuring the weight of a student using a digital scale, approximation should be taken into consideration. In the given case, the weight of the student should be somewhere between $$117.0\;{\rm{lb}}$$and $$117.4\;{\rm{lb}}$$.

Option (d) is the correct answer asthe weight of the studentlies somewhere between $$117.0\;{\rm{lb}}$$and $$117.4\;{\rm{lb}}$$. ### Want to see more solutions like these? 