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In comparing of two models(regressions), using F-statistic, why they should be nested in each other? —Preceding unsigned comment added by 217.219.166.149 (talk) 10:42, 18 March 2009 (UTC)
Does anybody know where to find solutions for the 2009 AIME? Lucas Brown 42 (talk) 18:25, 18 March 2009 (UTC)
You don't need to give me the whole answer, but I need to know how to get started. Find all the prime numbers p with the property that 8p^4-123 is also a prime. Thanks! 76.248.244.232 (talk) 22:43, 18 March 2009 (UTC)
THIS IS PART OF THE IUPUI MATHEMATICS CONTEST AND THE ORIGINAL POSTER IS TRYING TO CHEAT. 131.215.158.184 (talk) 19:50, 20 March 2009 (UTC) -->