Quiz-4 ML

What is Machine Learning

• The autonomous acquisition of knowledge through the use of computer programs

• The autonomous acquisition of knowledge through the use of manual programs

• The selective acquisition of knowledge through the use of computer programs

• The selective acquisition of knowledge through the use of manual programs

What is data science?

• The study of computers and their applications

• The extraction of meaningful insights from data

• The analysis of physical and biological processes

• The study of algorithms and data structures

Which programming language is widely used in data science?

What is the process of converting raw data into a usable format called?

• Data visualization

• Data preprocessing

• Data modeling

• Data analysis

Which of the following is NOT a supervised learning algorithm?

• Linear regression

• Decision tree

• K-means clustering

• Random forest

What is the purpose of exploratory data analysis (EDA)?

• To predict future outcomes

• To summarize and visualize data

• To remove outliers from the dataset

• To transform categorical variables into numerical ones

Which evaluation metric is commonly used for classification problems?

• Mean Squared Error (MSE)

• R-squared (R^2)

• Accuracy

• Root Mean Squared Error (RMSE)

What is the purpose of regularization in machine learning?

• To reduce overfitting

• To increase model complexity

• To speed up model training

• To eliminate outliers from the dataset

What is the process of finding the best hyperparameters for a model called?

• Feature selection

• Model selection

• Hyperparameter tuning

• Cross-validation

Which data visualization technique is best suited for displaying categorical data?

• Scatter plot

• Histogram

• Box plot

• Bar chart