使用四格表χ2检验校正的条件是( ) ,而在( )条件下,应取Fisher确切概率法的计算结果为宜。 A. n≥40且有1≤T<5; B. N<40或T<1; C. 1≤T<5; D. N<40
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【简答题】Jim is a boy who thinks a lot and learns a lot. One day when he was passing the elephants, he suddenly stopped. He saw a group of elephants and these big animals had a rope around their front . The ro...