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C Pre Lab 1

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Chemistry
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1. (a) Accuracy Accuracy is how close a value is to its true value. Precision Precision is how repeatable a measurement is or how close one measure to another but not the real value (true value). (b) Random errors in experiment are happen due to unknown and unpredictable changes in the experiment. As example, these changes may occur in the measuring instruments. And also the environment conditions also can effect to the experiment. Systematic errors in experimental observations usually come from the measuring instruments Because of error of the instrument or the instrument is wrongly used by ...
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