The classification tree algorithm is useful when

historical records are not available.

prediction of a categorical outcome variable is necessary.

a new category is observed.

prediction of a numerical outcome variable is necessary.

a category is discontinued.

Multiple linear regression utilizes _________blank to predict the value of _________blank.

multiple predictor variables, multiple outcome variables

a single predictor variable, multiple outcome variables

multiple outcome variables, a single predictor variable

multiple predictor variables, a single outcome variable

a single predictor variable, a single outcome variable