Question: "Convert the mixed number 3 1/2 to an improper fraction, then find the factors of that fraction, and finally calculate the square root of the sum of all factors. What is the final result?"
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What is the limit as x approaches 2 of (x^2 - 4) / (x^3 - 8)?
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What is the standard deviation of the following data set: 4, 7, 9, 15, 20?