With a good ______ of both Chinese and English, Miss Lin was assigned to be the tour guide for the A...

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so a good so good a such good a a such good

-∞＜χ²＜+∞ 0≤χ²≤+∞ χ²≤1 -∞≤χ²≤0 χ²≥1

better than they expected not as good as they wish both good and bad difficult to understand

None; all Neither; both Neither; either Both; neither

all; playing both; at all; at play both; in playing

χ2增大，P值减小 χ2减小，P值也减小 χ2增大，P值也增大 χ2减小，P值增大视数据不同而异

χ12 =χ22 χ12 ＞χ22 χ12 ＜χ22 χ12 比χ22准确 χ22 比χ12准确

因为有T<1，不能用χ²检验，应当用四格表的确切概率法用非连续性校正χ²检验肯定需连续性校正χ²检验一定不能用χ²检验还需要知道n的大小和最小理论频数后才能确定是否可以用χ²检验及是否需对χ²值进行校正

are;are am;am ani;are is;is

-∞<χ²<+∞ -∞<χ²<0 0≤χ²<+∞ -1<χ²<1 χ²≤1

are; are am; are is; is are; is

all…in both…in both…at both…in

too also either both

-∞<χ²<+∞ -∞<χ²<0 0χ²<+∞ -1<χ²<1 χ²≤1

None; all Neither; both Neither; either Both; neither

χ²增大，P值减小 χ²减小，P值也减小 χ²增大，P值也增大 χ²减小，P值增大视数据不同而异