An oil company in Houston, Texas is hiring a geologist. The company interviewed 16 candidates. After the interviews, they ranked the top 5 candidates from first to 5th. How many lists can be formed?

Answer 1

Only one. They ranked the candidates, and listed them. One list.

Now, if it was done randomly, with no ranking evaluation...

Number lists:
16*15*14*13*12

but what would be the point of interviewing, then ranking randomly?