Which one is a classification algorithm?(1 Point)Logistic regressionLinear regressionPolynomial regressionNone

1. Break Down the Problem

The question asks to identify which option among the listed ones is a classification algorithm. Classification algorithms categorize data into classes or groups based on input features.

2. Relevant Concepts

• Classification Algorithms: These algorithms predict the class labels for input data. Common examples include logistic regression, decision trees, k-nearest neighbors, etc.
• Regression Algorithms: On the other hand, regression algorithms predict a continuous outcome. Examples include linear regression and polynomial regression.

3. Analysis and Detail

1. Logistic Regression: Despite its name, logistic regression is used for binary classification problems.
2. Linear Regression: This is a regression algorithm used for predicting a continuous outcome.
3. Polynomial Regression: This is also a regression technique that predicts continuous variables.

4. Verify and Summarize

Based on the definitions:

• Logistic regression is the only classification algorithm among the options provided. Linear and polynomial regressions are not classification algorithms.

Final Answer

Logistic regression is a classification algorithm.