If a variable has a negative coefficient
Select an answer and submit.
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.
2) Applying multiple regression to classification presents challenges because
. ? 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.
3) Logistic regression is Select
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.