
Probability and Statistics Basic Probability and Statistics Math Forum 
 LinkBack  Thread Tools  Display Modes 
December 21st, 2016, 03:02 PM  #1 
Newbie Joined: Dec 2016 From: UK Posts: 1 Thanks: 0  Probability distribution
Hello, does any one recognise this formula? https://www.wolframalpha.com/input/?...(%5Calpha))*x!) $\displaystyle \frac{e^{\alpha}\alpha ^x}{(1e^{\alpha})x!}$ To what is refers? King regards Last edited by greg1313; December 21st, 2016 at 07:07 PM. 
December 22nd, 2016, 05:22 PM  #2 
Global Moderator Joined: May 2007 Posts: 6,343 Thanks: 534 
It looks like A Poisson density (x integer) under the condition that x=0 is excluded.


Tags 
distribution, probability 
Thread Tools  
Display Modes  

Similar Threads  
Thread  Thread Starter  Forum  Replies  Last Post 
Normal distribution: a probability distribution?  froydipj  Probability and Statistics  3  February 29th, 2016 04:35 PM 
Probability Distribution  lemon_kaka  Advanced Statistics  5  September 23rd, 2013 01:07 PM 
What is the probability distribution of X+Y?  ash_x  Probability and Statistics  1  December 4th, 2010 03:43 PM 
Probability distribution m.exp(rm)  gkannan16  Advanced Statistics  0  June 18th, 2009 09:54 AM 
probability distribution  mikeportnoy  Algebra  0  November 4th, 2008 06:46 AM 