What is the difference between relative and absolute statistical measure? J.J. Thomson discovered the electron by isolating negatively charged particles for which he could measure the mass-charge ratio. This ratio appeared to be constant over a wide range of experimental conditions and, consequently
What is the difference between relative and absolute statistical measure? J.J. Thomson discovered the electron by isolating negatively charged particles for which he could measure the mass-charge ratio. This ratio appeared to be constant over a wide range of experimental conditions and, consequently, could be characteristics of new particles. His observations from two different cathode-ray tubes that used air as the gas. Which tube is more homogeneous?
$$\begin{array}{|c|c|c|c|c|c|c|c|}\hline \text{Tube I} & 0.57 & 0.34 & 0.43 & 0.32 & 0.48 & 0.40 & 0.40 \ \hline \text{Tube II} & 0.53 & 0.47 & 0.47 & 0.51 & 0.63 & 0.61 & 0.48 \ \hline \end{array}$$
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Absolute measures of dispersion: - Expressed in the same units as the original data - Examples: Range, Quartile Deviation, Mean Deviation, Standard Deviation - Measure scatter in absolute terms - Cannot compare variability between series with different units or widely different means Relative mea...