What is the variance of the following dataset: {5, 9, 14, 17, 6, 10}?
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What is the equation of an ellipse with its major axis being vertical, center at (2,-3), a major axis length of 6 units, and a minor axis length of 4 units?
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What are the characteristics of an ellipse function with equation (x^2/a^2) + (y^2/b^2) = 1, where a > b?