.c. The relative deviation (d,) of a measurement or experimental data is the deviation divided by the mean. The relative deviation may be expressed in percent. d, = r100 = |x;-x -x100 The relative deviation may also be expressed in parts per thousand or ppt (by changing the factor 100 to 1000) or in terms of parts per million or ppm (by changing the factor 100 to 1,000,000). The choice of factor to use depends on the magnitude of the ratio. The relative deviation (ppt) of 17.29% Cu is d. The standard deviation, s, measures how closely the data are clustered about the mean. The smaller the standard deviation, the more closely the data are clustered about the mean, the more precise is the measurement. For a finite number of measurements, the standard deviation, s is " d? S = || (n-1) (n-1) IMPORTANT: The average and the standard deviation should end at the same decimal place. The standard deviation, s, of the results of the %Cu present in the metal alloy is

.c. The relative deviation (d,) of a measurement or experimental data is the deviation divided by the mean. The relative deviation may be expressed in percent. d, = r100 = |x;-x -x100 The relative deviation may also be expressed in parts per thousand or ppt (by changing the factor 100 to 1000) or in terms of parts per million or ppm (by changing the factor 100 to 1,000,000). The choice of factor to use depends on the magnitude of the ratio. The relative deviation (ppt) of 17.29% Cu is d. The standard deviation, s, measures how closely the data are clustered about the mean. The smaller the standard deviation, the more closely the data are clustered about the mean, the more precise is the measurement. For a finite number of measurements, the standard deviation, s is " d? S = || (n-1) (n-1) IMPORTANT: The average and the standard deviation should end at the same decimal place. The standard deviation, s, of the results of the %Cu present in the metal alloy is

Appl Of Ms Excel In Analytical Chemistry

2nd Edition

ISBN:9781285686691

Author:Crouch

Publisher:Crouch

Chapter4: Least-squares And Calibration Methods

Section: Chapter Questions

Problem 4P

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