What is Stata's file extension ending?

• .Statadata

• .dat

• .dta

• .csv

What is a do-file?

• A text file where you can save all the commands of your code.

• A file that is created automatically saving all the commands you have run from the command line.

• It is something not relevant to Stata.

• It is a data format.

What is correct about log-file?

• It is useless.

• Log file can only be created from a do file.

• Log file is Stata data format.

• It allows you to make a full record of your Stata session.

How to drop all the variables?

• clear

• drop all

• a) and b) are correct

• None of the above

What does "label variable inc "Income in US dollars"" command do?

• It assigns labels to the values of the variable inc.

• It assigns a label "Income in US dollars" to variable inc, providing user with more information.

• It changes the name of variable inc to "Income in US dollars".

• You will get an error message.

How to execute a command?

• Run a line of code from a do-file.

• Run a line of code from the command window.

• Using point and click interface.

• All of the above.