DA0-002 Data Analysis Practice Question
A logistic regression model predicts customer churn (0=no churn, 1=churn). The model outputs probabilities. Which THREE of the following statements about logistic regression are correct?
Answer choices
Why each option matters
Answer the question above first, then reveal the full breakdown to understand why each option is right or wrong.
Correct answer & explanation
✓
The model output is a probability between 0 and 1.
Logistic regression outputs probabilities; it uses the logistic function (sigmoid) to map linear combination to [0,1]. The coefficients represent log-odds changes. R² is for linear regression; pseudo-R² is used but not standard R².
Answer analysis
Option-by-option breakdown
For each option: why learners choose it and why it is or isn't the right answer here.
- ✓
The model output is a probability between 0 and 1.
Why this is correct
Correct: The sigmoid function ensures output in [0,1].
- ✗
The coefficient of determination R² is used to assess model fit.
Why it's wrong here
R² is for linear regression; logistic regression uses pseudo-R² or other metrics.
- ✓
The coefficients represent the change in log-odds for a one-unit change in the predictor.
Why this is correct
Correct: Coefficients are log-odds ratios.
- ✓
Logistic regression is used for binary classification.
Why this is correct
Correct: Logistic regression models binary outcomes.
- ✗
The model uses the linear regression equation y = mx + b directly.
Why it's wrong here
Logistic regression uses a logistic transformation; linear equation is for the log-odds.
Go deeper
Related to this question
About these practice questions
One of 986 original DA0-002 practice questions on Courseiva, each with a full explanation and wrong-answer analysis — not exam dumps or protected exam content. Learn why practice questions differ from exam dumps →
JA
Written by Johnson Ajibi, MSc IT Security
Senior Network & Security Engineer · founder of Courseiva
This DA0-002 practice question is part of Courseiva's free CompTIA certification practice question bank. Courseiva provides original exam-style practice questions with explanations, topic-based practice, mock exams, readiness tracking, and study analytics to help learners prepare for the DA0-002 exam.