Which of the following examples is the result of mining raw data to produce useful

Which of the following examples is the result of mining raw data to produce useful

information?

1.A printout of all sales taken from the register at the end of the day

2.An Excel spreadsheet listing all employees and their annual salaries in a random order

3.Raw data from questionnaires given at the mall

4.Netflix providing you with a list of videos you might enjoy