Sampling using random distribution of samples.

Item Summary
Name	Type	Multiplicity	Description
probability	property double	[0,1]	Probability of including a bucket in the sample (a number between 0 and 1).
sampleSize	property int	[0,1]	Approximate number of buckets in the sample.

Items
- probability
  
  Flags: RAM,runtime
  
  Multiplicity: [0,1]
  
  Probability of including a bucket in the sample (a number between 0 and 1).
- sampleSize
  
  Flags: RAM,runtime
  
  Multiplicity: [0,1]
  
  Approximate number of buckets in the sample. It is converted to a probability by dividing the sample size by the total number of buckets (if known).