逻辑回归中,若选0.5作为阈值区分正负样本,其决策平面是( )
A. wxb= 0
B. wxb= 1
C. wxb= -1
D. wxb= 2
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原题链接:PAT 1108 Finding Average
The basic task is simple: given N real numbers, you are supposed to calculate their average. But what makes it complicated is that some of the input numbers might not be legal. A legal input is a real number in…