Regression Analysis Quiz

What is the primary goal of regression analysis?

• To establish causation between variables

• To model relationships and make predictions

• To collect data from experiments

• To analyze categorical data only

Which of the following is an example of a dependent variable?

• Salary of a person

• Weekly working hours

• Level of education

• Age of a person

In which field is regression analysis commonly used to understand factors affecting children's concentration?

• Social Sciences

• Engineering

• Physics

• Chemistry

How can regression analysis be applied in a hospital setting?

• To forecast hospital occupancy rates

• To determine the best treatment for a disease

• To predict patient recovery times

• To analyze patient satisfaction

What distinguishes multiple linear regression from simple linear regression?

• Use of only one independent variable

• Use of several independent variables

• Focus on categorical dependent variables

• Application in non-linear data

Which type of regression is used when the dependent variable is categorical?

• Multiple linear regression

• Polynomial regression

• Simple linear regression

• Logistic regression

What is a common application of logistic regression?

• Predicting continuous outcomes

• Modeling binary outcomes

• Analyzing time series data

• Forecasting economic trends

What is a dummy variable used for in regression analysis?

• To replace missing data

• To simplify complex models

• To code categorical variables with more than two categories

• To represent continuous variables

Which question can be addressed using simple linear regression?

• Does age and education level affect salary?

• Does weekly working time impact hourly wage?

• Does gender influence job satisfaction?

• Does location affect housing prices?

What is the outcome variable in binary logistic regression?

• A continuous variable

• An ordinal variable

• A binary variable

• A nominal variable with multiple categories