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Data Driven Decision Making Final Certification Test 2026 Comprehensive Study Guide

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DATA DRIVEN DECISION MAKING FINAL CERTIFICATION TEST 2026 COMPREHENSIVE STUDY GUIDE

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DATA MINING AND STAT LEARN EXAM PREP
2026 TESTED QUESTIONS WITH RATIONALE

◉ Causation. Answer: One thing causes another thing


◉ Correlation. Answer: Two things tend to happen or not happen
together


◉ P-value. Answer: Estimates the probability the coefficient = 0.


◉ Confidence Interval (CI). Answer: Where the coefficient
probability lies


◉ T-Statistic. Answer: The coefficient divided by its standard error


◉ R-squared. Answer: Estimate of how much variability the model
accounts for


◉ Adjusted R-Squared. Answer: R-squared adjusted to the number
of attributes

, ◉ Overfitting. Answer: A machine learning model error where a
model learns the training data too well


◉ Heteroskedasticity. Answer: Unequal variance


◉ Trend. Answer: Increase or decrease of data over time


◉ Explainability/Interpretability. Answer: Helps us toward an
understanding of 'why'


◉ AUC (Area Under Curve). Answer: Probability that the model
estimates a random 'yes' point higher than a random 'no' point


◉ True positive (TP). Answer: Point in the category, correctly
classified


◉ False positive (FP). Answer: Point not in category, model says it is


◉ True negative (TN). Answer: Point not in category, correctly
classified


◉ False negative (FN). Answer: Point in category, model says no

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