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?


closed as off-topic by kjetil b halvorsen, Silverfish, Peter Flom Aug 28 '17 at 10:31

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  • 2
    $\begingroup$ Seems like you're looking to do Mixture modeling. $\endgroup$ – neerajt Feb 19 '16 at 5:49
  • $\begingroup$ if this is HW please add the self-study tag $\endgroup$ – Antoine Feb 19 '16 at 8:42
  • $\begingroup$ Thank you, neerajt. Yes, it seems that 1D Expectation Maximization. I am surprised at the complexity but happy to have come across this explanation: stats.stackexchange.com/questions/72774/…. And, no Antoine, this isn't homework -- just my colorful way of describing a real world problem I am trying to solve. Thanks. $\endgroup$ – Caligator Feb 25 '16 at 15:09