Poisson clumping
Poisson clumping, or Poisson bursts, is a phenomenon where random events may appear to occur in clusters, clumps, or bursts. == Etymology == Poisson clumping is named for 19th-century French mathematician Siméon Denis Poisson, known for his work on definite integrals, electromagnetic theory, and probability theory, and after whom the Poisson distribution is also named.