Quiz: Preprocessing - ML Study Guide

Question 1

To prevent data leakage when scaling:

A Scale before split B Fit on test set C Fit on train, transform both D Never scale

Question 2

StandardScaler results in:

A Values 0-1 B Mean=0, Std=1 C All positive D Max=100

Question 3

MinMaxScaler results in:

A Mean=0 B Values 0-1 C Std=1 D Unchanged

Question 4

One-Hot Encoding creates:

A Ordinal numbers B Binary columns C Continuous values D Missing values