What is the mean, mode, median, range, and average of the following set of numbers: 4, 5, 6, 7, 7, 8, 9, 11, 15, 18?
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Math question: How does changing the coefficient 'a' in the equation of a parabola function (π¦ = ax^2) affect the shape and direction of the parabola? Provide a specific example.
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What is the probability of rolling two fair six-sided dice and rolling a sum greater than 9?