- CFA Exams
- CFA Level I Exam
- Study Session 3. Quantitative Methods (2)
- Reading 8. Big Data Projects
- Subject 4. Model Training

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**CFA Practice Question**

In a confusion matrix, the maximum score of precision is ______.

A. 0

B. 1

C. 100

**Explanation:**Precision = TP/(TP + FP). It is 1 when the classifier perfectly classifies all the positive values (FP = 0). Precision alone is not very helpful because it ignores the negative class. The metric is usually paired with Recall metric.

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