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October 16th, 2012, 05:30 PM  #1 
Senior Member Joined: Jan 2010 Posts: 324 Thanks: 0  Moment generating function to PMF
What is the procedure there? I have a m(t)= _____ where, p(x=1)=2/5, p(x=2)=1/5, and p(x=3)=2/5 but where do I go from here to find pmf, mean, and variance. 
October 16th, 2012, 06:35 PM  #2 
Senior Member Joined: Jan 2010 Posts: 324 Thanks: 0  Re: Moment generating function to PMF
I got 2, and 4/5ths for the variance and mean.

October 17th, 2012, 02:31 PM  #3  
Global Moderator Joined: May 2007 Posts: 6,305 Thanks: 525  Re: Moment generating function to PMF Quote:
 
October 19th, 2012, 07:01 AM  #4 
Senior Member Joined: Jan 2010 Posts: 324 Thanks: 0  Re: Moment generating function to PMF
Thanks


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