Complete the sentence with the words that best fill in the blanks respectively: Data can be obtained from all or some elements under investigation ...

Complete the sentence with the words that best fill in the blanks respectively: Data can be obtained from all or some elements under investigation and, when grouped in a spreadsheet, form a ________ that can help quickly obtain information.


a) Sample and data set.
b) Population and data set.
c) Sample and variable.
d) Population and variable.