Chapter 1.7 – The Reliability of a Measurement – Flashcards
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| what are significant figures? |
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o the non-place-holding digits |
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| what are exact numbers? |
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o no uncertainty, no limit to the number of significant figures in any calculation |
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| what is accuracy? |
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o how close the measured value is to the actual value |
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| what is precision? |
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o how close a series of measurements are to one another or how reproducible they are |
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| what is random error? |
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o equal probability of being too high or too low |
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| what is a systemmatic error |
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– error that tends to be either too high or too low |
