What is 2+2? Question: What is the sum of 2 + 2? An accountant will say "What do you want the answer to be?" A mathematician will say "I believe it is 4, but I will have to prove it." A statistician will say "The population is too small to give an accurate answer, but on the basis of the data supplied the answer lies between 3 and 5." An economist will say "Based on today's thinking, the answer is 4 but the answer may be different tomorrow". An engineer will say "The answer is 4, but adding a safety factor we will call it 5".
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