Chemistry / Unit 1 Chem 0148 short lesson, about 20 seconds
Accuracy
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The idea
Accuracy is how close a measurement is to the true value, regardless of agreement between repeated measurements.
In practice
A second dispenser's five fills land within 3 mL of the 296 mL target — accurate — yet span over 4 mL, making it imprecise.
Where people slip
Agreeing with neighboring readings doesn't prove correctness; accuracy and precision are independent, and a result can be accurate yet imprecise.
Your place on the trail
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Builds on
Unlocks
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