---
name: "pbinom"
section: "3m"
platform: "linux"
package: "iraf"
version: "2.11.3-2"
release: "Debian 3.0 (Woody)"
platforms: ["linux"]
url: "https://new.carta.tech/pbinom"
---

# pbinom(3m)

## NAME

pbinom

## DESCRIPTION

function pbinom.f

source\
   Bevington, page 31.

purpose\
   evaluate binomial probability coefficient

usage\
   result = pbinom (nobs, ntotal, prob)

description of parameters\
   nobs   - number of items observed\
   ntotal - total number of items\
   prob   - probability of observing each item

subroutines and function subprograms required\
   factor (n)\
     calculates n factorial for integers