Hi, I'm trying to find the MM of a Beta(a,b) using the first and second raw moments. I use and I then set those equal to and , respectively, and (try to) solve for a and b. Does that sound right? (I'm getting stuck.) Thanks!
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Originally Posted by Statistik Hi, I'm trying to find the MM of a Beta(a,b) using the first and second raw moments. I use and I then set those equal to and , respectively, and (try to) solve for a and b. Does that sound right? (I'm getting stuck.) Thanks! what is ... ? you should set the sample moments equal to the pop moments you set and
Matheagle, Thanks. That's what I am trying - sorry for not clarifying. I am using and and then am setting and Does that mean I'm just stuck with the math? ;-( Thanks!
you can find the answer at Beta distribution - Wikipedia, the free encyclopedia Note that they use the centered second moment, but you can expand v and use your two sample moments.
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