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Questions and Answers
Which of the following is the definition of linear regression?
Which of the following is the definition of linear regression?
- Testing causal relationships between variables
- Estimating parameters in a model
- Determining the degree of relationship in the patterns of variation of two or more variables (correct)
- Using data to describe relationship between outcomes and predictors
Linear regression can be used for all of the following except:
Linear regression can be used for all of the following except:
- Estimation
- Modelling causal relationships (correct)
- Hypothesis testing
- Prediction
What is the main advantage of using regression?
What is the main advantage of using regression?
- It is backed up by a lot of theoretical work
- The model is very flexible and can be adjusted to many different problems (correct)
- The interpretation of parameters is intuitive
- It accurately describes the relationship between outcomes and predictors
What is the purpose of correlation?
What is the purpose of correlation?
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According to George E.P. Box, what is the nature of models?
According to George E.P. Box, what is the nature of models?
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