INTRODUCTION TO THE PRACTICE OF STATISTICS " F' D& G/ f9 z
5TH EDITION % n9 g/ l0 S; _1 @% ~AUTHER: DAVID & GEORGE7 i9 H3 `* q" M1 v, D# h9 z# u; t! W
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发表于 2008-9-19 21:59
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