text: From the kinetic energy formula it can be shown that
  where v is in m/s, T is in kelvin, and m is the mass of one molecule of gas in kg. The most probable (or mode) speed  is 81.6% of the root-mean-square speed , and the mean (arithmetic mean, or average) speed  is 92.1% of the rms speed (isotropic distribution of speeds).
  See: 
  * Average, 
  * Root-mean-square speed
  * Arithmetic mean
  * Mean
  * Mode (statistics)