What is the variance of the dataset {4, 7, 2, 9, 5}?
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Math question: What is the smallest positive integer value of n that satisfies the equation x^n + y^n = z^n, where x, y, and z are integers, violating Fermat's Last Theorem? (
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What is the sum of vectors A = (3, 4) and B = (-2, 7)?