解:(1)∵众色培没式专红球有2x个,白球有3x个,
(红球)
(白球)
················ (2分诉轻船云据子航永培拿滑)
(红球)
(白球) ∴这个办法不公平············································ (1分)
(2)取出3个白球后,红球有2x个,白球有(
)个,
(红球)
(白球)
为正整数···············讲··················· (1分)
(红推球)
(白球)
··························································· (1分)
①当
时,则
(红球)
(白球) ∴对小妹有利;
②当
时,则
(红球)
(白球) ∴对小妹、小明是公平的;
③当
时,则
(红球)
(白球) ∴对小明有利;···草资亲十费雨知己导队························ (3分)略
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