Exam DY0-001 topic 1 question 61 discussion

Actual exam question from CompTIA's DY0-001

Question #: 61
Topic #: 1

A data scientist is using the following confusion matrix to assess model performance:

The model is predicting whether a delivery truck will be able to make 200 scheduled delivery stops. Every time the model is correct, the company saves an hour in planning and scheduling of maintenance work. Every time the model is wrong, the company loses four hours of delivery time for the truck. Which of the following is the net model impact for the company?

A. 25 hours lost
B. 25 hours saved
C. 165 hours lost
D. 165 hours saved

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Suggested Answer: A 🗳️

by SuntzuLegacy at May 19, 2025, 11:27 p.m.

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SuntzuLegacy

1 month, 1 week ago

Selected Answer: B

First, note that each correct prediction saves 1 hour, and each incorrect prediction costs 4 hours. Based on the confusion matrix, assume there are 200 total cases: Correct predictions: 80 + 85 = 165 → Total saved hours = 165 × 1 = 165 Incorrect predictions: 20 + 15 = 35 → Total lost hours = 35 × 4 = 140 Hence, net hours = 165 saved − 140 lost = 25 hours saved.

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