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Adult Northern and Southern Yeti heights can each be represented as normal distributions: Yeti Type mean sd Northern 92in 4.5in Southern 95in 4.2in

20,000 Yeti adults attend a concert, each one’s height being recorded upon entry.

What could one say about the proportion of Northern vs Southern Yeti at the concert based only on the 20K height measurements?

Caligator
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    Seems like you're looking to do [Mixture modeling](https://en.wikipedia.org/wiki/Mixture_model#Gaussian_mixture_model). – neerajt Feb 19 '16 at 05:49
  • if this is HW please add the self-study tag – Antoine Feb 19 '16 at 08:42
  • Thank you, neerajt. Yes, it seems that 1D Expectation Maximization. I am surprised at the complexity but happy to have come across this explanation: http://stats.stackexchange.com/questions/72774/numerical-example-to-understand-expectation-maximization. And, no Antoine, this isn't homework -- just my colorful way of describing a real world problem I am trying to solve. Thanks. – Caligator Feb 25 '16 at 15:09

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