An accountant, an engineer and a statistician were interviewing for a job. Each of them were asked the same question at the conclusion of the interview: what is 4 x 5?
The engineer replied 20.000 with a 100% certainty factor.
The statistician answered that the sample size was too small to make any reliable conclusions.
The accountant looked around, leaned over the desk, and in a whisper asked, “what do you want it to be?”