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5 Cards in this Set
- Front
- Back
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Exact Numbers
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those whose values are known exactly- have defined values or are integers from counting
ex. 12 things= 1 dozen |
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Inexact Numbers
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those whose values have some uncertainty- numbers obtained by measurement-- UNCERTAINTIES ALWAYS EXIST IN MEASURED QUANTITIES!
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Accuracy
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refers to the closeness of measurements to the correct or accepted value of the quantity measured
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Precision
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a measure of how closely individual measurements agree with one another
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Percent Error
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= (accepted value - experimental value) / accepted value x 100
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