Question 7 If a variable has a negative coefficient Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. a Then the R-square will be lower than if this variable was not included. b Then the predicted value will decrease when this variable increases. Something is wrong when a coefficient is negative. d None of the above. Question 10 Applying multiple regression to classification presents challenges because Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. The outcome is binary. b Only gives estimates of the probability and not the actual classification. Can give probability outcomes that are not between 0 and 1. d All of the above. Question 11 Logistic regression is Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. a Used to estimate the probability that a case is in a particular group. b Requires a decision rule to translate a probability into a classification. Uses an S shaped curve to relate each variable to the binary outcome. d All of the above