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【单选题】
回归方程中,Y的误差的方差的估计值为4,当X=5时,Y的95%的近似预测区间是: (回归方程 )A.
23±2.81
B.
23±3.15
C.
23±3.24
D.
23±3.92
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A.
正确
B.
错误
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A.
available
B.
irritable
C.
hungry
D.
relaxed
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A.
tofu
B.
bean sprouts
C.
yin foods
D.
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