Math question: What is the standard deviation of a data set with values {10, 20, 30, 40, 50}?
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Question: In a right triangle, if the length of the adjacent side is 8 and the length of the hypotenuse is 10, what is the value of the sine of the angle between them?
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Math question: What is the slope-intercept equation for a line passing through point (3, 5) with a slope of 2?