Which of the following formula is used to calculate the sensitivity of a model?
2023
Which of the following formula is used to calculate the sensitivity of a model?
- A.
FP / (TP + FN)
- B.
TN / (TP + FN)
- C.
TP / (TP + FN)
- D.
FN / (TP + FN)
Show answer & explanation
Correct answer: C
Key idea: Sensitivity is also called recall or true positive rate.
TP: true positives, i.e. actual positives correctly predicted positive.
FN: false negatives, i.e. actual positives incorrectly predicted negative.
Sensitivity measures how many actual positives were correctly detected.
Formula: Sensitivity = TP / (TP + FN)