Basic Statistics - Old Questions
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1. What is the difference between relative and absolute statistical measures? 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 characteristic of new particles. His observations from two different Cathode-ray tubes that used air as the gas are:
| Tube I | 0.57 | 0.34 | 0.43 | 0.32 | 0.48 | 0.40 | 0.40 |
|---|---|---|---|---|---|---|---|
| Tube II | 0.53 | 0.47 | 0.47 | 0.51 | 0.63 | 0.61 | 0.48 |
Which tube is more homogeneous? [10]
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