What is the standard deviation of a dataset with values: 12, 15, 18, 21, 24?
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Math question: Consider the quadratic function f(x) = 2x^2 - 5x + 3. Graph this function on a coordinate plane. How many x-intercepts does the graph have? What are their corresponding coordinates? How many times does the graph intersect the x-axis?
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Math Question: Find the maximum value of a continuous function f(x) = x^3 - 4x^2 + 5x - 2 on the closed interval [1, 5].