Question

J. J. Thomson (1856-1940) 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 a characteristic of a new particle. His observations, from two different cathode-ray tubes that used air as the gas, are Tube 1 0.57 0.34 0.43 0.32 0.48 0.40 0.40 Tube 2 0.53 0.47 0.47 0.51 0.63 0.61 0.48 (a) Draw a dot diagram with solid dots for Tube 1 observations and circles for Tube 2 observations. (b) Calculate the mean and standard deviation for the Tube 1 observations. (c) Calculate the mean and standard deviation for the Tube 2 observations.

Answer 1

Answer:

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