Isaca ISACA Advanced in AI Audit (AAIA) AAIA Question # 11 Topic 2 Discussion
AAIA Exam Topic 2 Question 11 Discussion:
Question #: 11
Topic #: 2
During audit planning, an IS auditor reviews the correlation matrix. Which variable pair from an electrical generation facility has the MOST significant correlation?
A.
Electricity demand and machine torque is 0.0
B.
Daily precipitation and generator efficiency is 0.09
C.
Temperature and generator effectiveness is –0.85
A correlation of –0.85 (option C) represents a strong negative correlation, indicating a meaningful inverse relationship. In AI model development, high-magnitude correlations (positive or negative) strongly influence feature selection and model behavior.
AAIA emphasizes that auditors must understand correlation strength to evaluate:
Feature relevance
Model weight justification
Risk of multicollinearity
Data quality and representativeness
The other correlations are weak or negligible.
Thus, the pair with –0.85 is the most significant.
[References:, AAIA Domain 1: AI Data Relationships, AAIA Domain 2: Data Understanding and Statistical Foundations, ]
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