Specificity,a measure of classification accuracy,reflects: (regard class 1 as yes and class 2 as no)
A) the portion of observations that are actually in class 1 that are classified as being in class 1.
B) the portion of observations that are actually in class 2 that are classified as being in class 2.
C) the portion of observations that are actually in class 2 that are classified as being in class 1.
D) the portion of observations that are classified as class 1 that are actually in class 1.
Correct Answer:
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