Question

1 point
Consider forward selection, backward selection and best subset selection with respect to the same data set. Which of the following is true?
Best subset selection can be computationally more expensive than forward selection
Forward selection and backward selection always lead to the same result
Best subset selection can be computationally less expensive than backward selection
Best subset selection and forward selection are computationally equally expensive
Both (b) and (d)

Answer 1

Forward selection and backward selection always lead to the same result

Answer 2

Answer:

Best subset selection can be computationally more expensive than forward selection

Explanation: