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PDF

PDF[dist, x]
gives the probability density function for the symbolic distribution dist evaluated at x.
PDF[dist]
gives the PDF as a pure function.
  • For continuous distributions, PDF[dist, x]dx gives the probability that an observed value will lie between x and x+dx for infinitesimal dx.
  • For discrete distributions, PDF[dist, x] gives the probability that an observed value will be x.
The PDF of a normal distribution with zero mean and unit standard deviation:
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The PDF of a hypergeometric distribution:
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The PDF of a Poisson distribution as a pure function:
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