Final Flashcards
Logistic Regression
Used when the dependent variable (Target) is categorical
Predict whether email is spam (1) or (0)
- Outcome variable is
What does the coefficient 𝛽 represent in Logistic Regression?
The weight of the predictor value
The logistic response function ensures probabilities are between:
0 and 1
What does Multinomial Logistic Regression deal with?
Ordered categorical outcomes
In Logistical Regression what is logit?
The probability that can exceed 1
What is the range for logit?
-oo to + oo
- Probabilities are between 0 and 1
What is the primary assumption of Logistic Regression?
Linear relationship between predictors and the logit
Which type of logistic regression is used when the response variable has three or more unordered categories?
Multinomial Logistic Regression
What does the odds ratio represent in Logistic Regression?
The change in odds associated with a one-unit increase in a predictor variable
Which of the following best describes a “cutoff value” in Logistic Regression?
A threshold to decide between predicted classes
What does the coefficient of a predictor variable signify in Logistic Regression?
The expected change in logit for a one-unit increase in the predictor variable
What does the coefficient 𝛽1 in Logistic Regression signify?
The change in log-odds for a one-unit increase in the predictor
What is the purpose of the logit function in Logistic Regression?
To map logits to probabilities
Which of the following tools can help determine the best cutoff value in Logistic Regression?
Confusion matrix
Which regularization technique penalizes the sum of the absolute values of the coefficients in Logistic Regression?
Lasso Regression
