Razón española, Edizioni 21-26Fundación Balmes, 1983 |
Dall'interno del libro
Risultati 1-3 di 42
Pagina 7
... Deviation from mean ( π- ' x ) e- ( x , -μ ) 2/202 +20 +30 FIGURE 1-2 A normal or Gaussian distribution curve . which then gives the deviation from the mean in units of standard deviations . The Standard Deviation . Equation 1-1 ...
... Deviation from mean ( π- ' x ) e- ( x , -μ ) 2/202 +20 +30 FIGURE 1-2 A normal or Gaussian distribution curve . which then gives the deviation from the mean in units of standard deviations . The Standard Deviation . Equation 1-1 ...
Pagina 8
... variance which is equal to σ2 . Most experimental scientists prefer to employ σ rather than σ2 because the units of the standard deviation are the same as those of the quantity measured . The vari- ance , on the other hand , has the ...
... variance which is equal to σ2 . Most experimental scientists prefer to employ σ rather than σ2 because the units of the standard deviation are the same as those of the quantity measured . The vari- ance , on the other hand , has the ...
Pagina 16
... variance of the result ( o ) . The absolute standard deviation is then σx = x ( +++ (笑) 2 ( 1-18 ) r EXAMPLE 1-7 . Calculate ( a ) the coefficient of variation and ( b ) the absolute standard deviation for x , where x = 4.10 ( ± 0.02 ) ...
... variance of the result ( o ) . The absolute standard deviation is then σx = x ( +++ (笑) 2 ( 1-18 ) r EXAMPLE 1-7 . Calculate ( a ) the coefficient of variation and ( b ) the absolute standard deviation for x , where x = 4.10 ( ± 0.02 ) ...
Sommario
Contents | 1 |
Elementary Electronics | 30 |
Microcomputers and Microprocessors in Chemical Instrumentation | 80 |
Copyright | |
46 sezioni non visualizzate
Altre edizioni - Visualizza tutto
Parole e frasi comuni
absorbance absorption acid amplifier Anal analysis analyte analytical signal anode applications atoms beam Beer's law Calculate cathode cell Chem chemical chromatography circuit column components compounds concentration constant containing coulometric curve detector determination device dispersion effect elec electrical electrode elements emission employed energy Equation example excited filter flame fluorescence frequency function hydrogen infrared input instruments ionization iron(II liquid magnetic mass mass spectrometer measurements membrane ment methods mobile phase molar absorptivities molecular molecules monochromator obtained operational amplifier optical output oxidation particles peak photomultiplier plate polarized polarography potential prism protons pulse quantitative radiation Raman range reaction reagent refractive refractive index region relative rotation sample sensitivity shown in Figure signal slit solution solvent species spectra spectrometer spectrophotometer spectroscopy spectrum standard deviation stationary phase surface temperature tion titration trode tube typical ultraviolet V₁ vibrational voltage wave wavelength X-ray