How do you know average is up?

来源: Chris20119 于 2012-09-17 12:39:15 [] [旧帖] [给我悄悄话] 阅读数 : (64 bytes)
回答: median down, average up 由 ghost_in_shell 于 2012-09-17 12:26:14

Can you provide evidence to support your claim?

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