6. Question 6 In unsupervised learning, we do not need the presence of a group label since we let algorithms tell us which group our observations fall into. 1 / 1 point True False
6. Question 6 The biggest difference between supervised and unsupervised machine learning is that supervised machine learning requires the identification of a dependent variable, whereas unsupervised machine learning does not need to a dependent variable identified. 1 / 1 point True False…
7. Question 7 For regression with categorical dependent variable, the dependent variable is coded as an indicator variable. 1 / 1 point True False
9. Question 9 Overfitting refers to the situation when a model does a better job of predicting the dependent variable for data that wasn’t used to create the model, than it does of predicting the dependent variable…
7. Question 7 For regression with categorical dependent variable, the dependent variable is coded as an indicator variable. 1 / 1 point True False
5. Question 5 What should we do if we find that a coefficient in multiple regression is insignificant? 1 / 1 point We should make it become significant. We should keep it in our…
8. Question 8 Multiple regression is a powerful tool that reports the common effect of coefficients. 1 / 1 point True False
4. Question 4 The values of correlation always range from –1 to 1. 1 / 1 point True False
