A company was hiring, and had the selection down to a mathematician, an engineer, and a statistician. They called the mathematician in, and asked him what 2 + 2 was. He said, " well, in base 5 and up, it's 4, but in lower bases, it could be 10 or 11 or 100.
They called the engineer in and asked him what 2 + 2 was. He said, " theoretically, it's 4, but it's actually impossible to create a 2 inch rod and another 2 inch rod and place them end-to-end and get 4 because of measurement precision, temperature, etc."
They called in the statistician and asked him what 2 + 2 was. He leaned in close, squinted his eyes and grinned a little, looked right and left, then said, "what do you want it to be?"
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