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Chapter 6 vocab
Chapter 6 Vocabulary
8
Chemistry
Undergraduate 2
04/17/2013

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Term
Spread
Definition
in a set of replicate measurements is the difference between the highest and lowest results.
Term
standard deviation
Definition
precision estimate based on deviations of individual data from the mean of a finite sample
Term
variance
Definition
a precision estimate consisting of the square of the standard deviation
Term
coefficient of variation(CV)
Definition
The relative standard deviation expressed as a pecentage
Term
relative standard deviation (RSD)
Definition
standard deviation divided by the mean
Term
Significant figures
Definition
A system imparting to the reader information concerning the reliability of numerical data. In general, all digits known with certainty, plus the first uncertain digit are significant.
Term
Gaussian curve
Definition
A curve that shows a symmetrical distribution of data around the mean of an infinite set of data
Term
Standard error of the mean
Definition
Is the mean set of standard deviation of a set of data divided by the square root of the number of data points
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