Data Science BCS 6th

What is the primary goal of regression analysis?

• Classifying data points

• Predicting continuous values

• Clustering data

• Identifying outliers

Which of the following is an example of regression?

• Predicting if an email is spam or not

• Predicting salary based on years of experience

• Grouping customers based on purchasing behavior

• Identifying fraudulent transactions

Which variable type does linear regression predict?

• Categorical

• Discrete

• Continuous

• Nominal

In the equation Y=aX+b, what does a represent?

• The predicted value

• The slope or gradient

• The intercept

• The independent variable

Which algorithm is used to solve classification problems?

• Linear Regression

• Logistic Regression

• K-means Clustering

• Decision Trees

In linear regression, what does the value of b represent in the equation Y=aX+b?

• The slope of the line

• The intercept of the line

• The predictor variable

• The dependent variable

Which of the following is NOT an application of linear regression?

• Salary forecasting

• Analyzing trends

• Real estate price prediction

• Email spam detection

Which of the following is a feature of machine learning?

• Manual data labeling

• Learning from past data and improving automatically

• Only used for large data sets

• Requires human intervention for each decision

What type of learning is regression analysis a part of?

• Unsupervised learning

• Reinforcement learning

• Supervised learning

• Semi-supervised learning

What is the primary purpose of Association Rule Mining?

• Discovering frequent itemsets in databases

• Classifying data into clusters

• Compressing large datasets

• Generating predictive models