Answer:The most easiest way to drop columns is by using subset() function.
Explanation:
In the code below, we are telling R to drop variables x and z. The '-' sign indicates dropping variables. Make sure the variable names would NOT be specified in quotes when using subset() function.
Answer:
The correct answer for the given question is "true".
Explanation:
Yes delete is a verb in a database table because it perform the action it means it will delete the data or record from a database table .The SQL query of delete is
Delete from tablename ;
For example :delete name from student;
In this query name will deleted from student table this action will be performed by delete query so we conclude that delete is a verb.
Answer: A digital tablet
Explanation: a scanner wouldnt show how to draw, a stock image would just show an image, phtot editing is to edit a picture took like to change the light. The answer is Digital tablet because you can draw on it while recording.
