FCPC-FunOfAi-MidtermExam

What is the main objective of supervised learning?

• Discover hidden patterns in data

• Reduce dimensionality

• Predict output labels based on input data

• Cluster similar data points

Which of the following is NOT a supervised learning algorithm?

• Linear Regression

• K-Means Clustering

• Decision Trees

• Support Vector Machines

In Python, which library is commonly used for implementing supervised learning models?

• matplotlib

• seaborn

• sklearn

• numpy

What is the primary purpose of the train_test_split function in scikit-learn?

• To plot training data

• To evaluate model performance

• To split data into training and testing sets

• To normalize data

Which evaluation metric is most appropriate for a regression problem?

• Accuracy

• Precision

• Mean Squared Error (MSE)

• F1 Score

What is the default splitting ratio for train_test_split() in scikit-learn?

• 80% train, 20% test

• 70% train, 30% test

• 60% train, 40% test

• 75% train, 25% test

Which of the following is a classification algorithm?

• K-Nearest Neighbors

• Ridge Regression

• Lasso

• PCA

What does the fit() method do in supervised learning models?

• Evaluates the model

• Splits the dataset

• Trains the model on given data

• Predicts output labels

In logistic regression, the output is:

• A continuous number

• A probability

• A cluster label

• A set of features

Which function is used to calculate accuracy in classification using scikit-learn?

• mean_squared_error()

• r2_score()

• accuracy_score()

• log_loss()