HistogramDistribution
HistogramDistribution[{x1,x2,…}] represents the probability distribution corresponding to a histogram of the data values xi.
HistogramDistribution[{{x1,y1,…},{x2,y2,…},…}] represents a multivariate histogram distribution based on data values {xi,yi,…}.
HistogramDistribution[…,bspec] represents a histogram distribution with bins specified by bspec.
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