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July 27th, 2017, 10:41 AM  #1 
Newbie Joined: May 2011 Posts: 8 Thanks: 0  advanced problems with answer sheet in statistics
I am looking for advanced problems in statistics with answer sheet on the subjects: probability distributions where you have to rewrite the sum of variables to a new probability distribution. Advanced problems in calculating variance and expected values for probability distributions. Advanced problems for bivariate problems. Does anyone know where to find this? If you know about a learning internet site who provides this please let me know where it is. But it is also nice if you have some problems that covers this in theory books if there is an answer sheet book that is also available. PS: I have done some research myself and I found that studypug.com provided nice theory on probabilty of permutations and combinations etc. But on the subjects that I have adressed above I am more lost on finding subjects. An example of an assignment is: upload pic It is expecially assignment c) in the example above that I want more similar problems to. The part that you have to rewrite a probability distribution to another. Or problems as adressed above. 
July 27th, 2017, 05:14 PM  #2 
Senior Member Joined: Dec 2012 From: Hong Kong Posts: 853 Thanks: 311 Math Focus: Stochastic processes, statistical inference, data mining, computational linguistics 
Look at the 'theoretical problems' in Ross' A First Course in Probability  they should be around the level you're looking for 

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