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Exam A00-240 topic 1 question 89 discussion

Actual exam question from SAS Institute's A00-240
Question #: 89
Topic #: 1
[All A00-240 Questions]

FILL BLANK -
Refer to the confusion matrix:

An analyst determines that loan defaults occur at the rate of 3% in the overall population. The above confusion matrix is from an oversampled test set (1 = default).
What is the sensitivity adjusted for the population event probability?
Enter your answer in the space below. Round to three decimals (example: n.nnn).

Show Suggested Answer Hide Answer
Suggested Answer: 0.617
by jevanthony at Aug. 5, 2020, 5:41 p.m.

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jevanthony
Highly Voted 3 years, 8 months ago
answer is 312/500=0.624
upvoted 5 times
maddarsi
1 year, 6 months ago
and adjustment of 3%?
upvoted 1 times
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salvali
Most Recent 1 year, 11 months ago
The answer is: Adj_Sensitivity = N * PriorProb * Sensitivity = 1000 * 0.03 * 0.624 = 18.72
upvoted 2 times
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SOBOU
2 years, 2 months ago
I think it is: n*p1*sensitivity=500*0.03*0.624=9.36
upvoted 2 times
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PerkDizzzle
3 years, 6 months ago
It's 312/(188+312)
upvoted 2 times
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Unorich
3 years, 6 months ago
Why is .624 (the true sensitivity) the correct answer? I've seen others state you reduce the TP by 3% and then re-calculate sensitivity which gives the answer currently showing of .617.
upvoted 3 times
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