Question: In a survey of 50 students' ages at a school, the mode is 15, the median is 14, and the range is 10. What is the mean and average age of the students?
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What are the foci and major axis length of an ellipse with equation (x^2/25) + (y^2/16) = 1?
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What is the probability of getting exactly 3 heads when tossing a fair coin 5 times?