IBM Planning Analytics V2.0 Developer — Question 31

What is the formula for recall in a classification system?

Answer options

• A. False Positives / (True Negatives + False Negatives)
• B. True Positives / (True Positives + True Negatives)
• C. True Positives / (True Positives + False Positives)
• D. True Positives / (True Positives + False Negatives)

Correct answer: C

Explanation

The correct formula for recall is True Positives / (True Positives + False Negatives), which measures the proportion of actual positives that were correctly identified. Other options either incorrectly use True Negatives or False Positives, which do not pertain to the definition of recall.