Quiz: Removing Data

QUIZ QUESTION::

For each of the scenarios described below match to the appropriate solution with regard to dropping values.

ANSWER CHOICES:

Scenario	Drop
An entire column has missing values.
An entire row has missing values.
A column has a mix of heights in feet and meters.
For the response (the variable we want to predict), there are rows with missing values.

SOLUTION:

Scenario	Drop
An entire row has missing values.
An entire column has missing values.
An entire row has missing values.
A column has a mix of heights in feet and meters.
An entire column has missing values.
A column has a mix of heights in feet and meters.
For the response (the variable we want to predict), there are rows with missing values.
An entire column has missing values.

QUIZ QUESTION::

For each of the scenarios described below match to the appropriate solution with regard to dropping values.

ANSWER CHOICES:

Scenario	Drop
Only 2% of the values in the column exist.
There are no missing values in the column, but all values are 1.
A column pertaining to values that should all be positive has some negative values.

SOLUTION:

Scenario	Drop
Only 2% of the values in the column exist.
A column pertaining to values that should all be positive has some negative values.
There are no missing values in the column, but all values are 1.