Dispersion of nucleation under the smooth variation of external   conditions
  A simple method to calculate dispersion of the total number of droplets appeared in the process of nucleation caused by the smooth variation of external conditions has been presented. The analytical result for dispersion is compared with results of numerical simulations and the coincidence has been observed. The role of stochastic appearance of several first droplets in formation of dispersion has been analyzed. 
Victor Kurasov