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What is the greatest possible error for a measurement of $2$ kilometers? $\newline$ ____ kilometers

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Greatest possible error

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Q. What is the greatest possible error for a measurement of

2

kilometers?

\newline

____ kilometers

Determine precision: Determine the precision for the measurement of $2$ kilometers. $\newline$ Since the measurement is given as $2$ kilometers without any decimal or fractional part, the precision is to the nearest kilometer. $\newline$ Precision: $1$ kilometer
Calculate error: Calculate the greatest possible error based on the precision. $\newline$ The greatest possible error for a measurement is half of the unit of precision. $\newline$ Greatest possible error $= \frac{\text{Precision}}{2}$ $\newline$ $= \frac{1 \text{ kilometer}}{2}$ $\newline$ $= 0.5 \text{ kilometers}$

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