Master Linear Regression and Correlation with this Knowledge Quiz
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Questions and Answers

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:

  • Estimation
  • Modelling causal relationships (correct)
  • Hypothesis testing
  • Prediction

    • 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?

    <p>To determine the degree of relationship between two or more variables</p> Signup and view all the answers

    According to George E.P. Box, what is the nature of models?

    <p>All models are wrong, but some are useful</p> Signup and view all the answers

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