d STB-1 sg2. Exact and cumulative Poisson probability. d STB insert by Joseph Hilbe, Ph.D., STB Editor. d Support: Fax 602-860-1446 d After installation, see help ^epoisson^ and help ^cpoisson^. f sg2/cpoisson.ado f sg2/cpoisson.hlp f sg2/epoisson.ado f sg2/epoisson.hlp