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10 Cards in this Set
- Front
- Back
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What types of error are there?
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Sampling error
Calibration error Experimental error |
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What causes noise?
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Unwanted fluxuations when measuring a static value
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When would you use a standard deviation with a denominator of (n-1)?
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for a sample size of only a few
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When is noise relevent?
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Only relevent when you know the amplitude of the signal
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Why do poeple use SEM over SD
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Value of variation improves by a factor of ROOTn, thus always smaller than the SD
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What does SEM tell you?
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Quantifies how accuratly you now the mean
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When would you use SEM?
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Mostly in bioloogical papers, as high amount of biological variation
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What is precision
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noise/average signal
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What does preciosn tell us?
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How close the measurements are to one another
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Limit of detection
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The lowest signal you can see
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