What is the mode, median, and range of the data set {3, 5, 5, 6, 8}?
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Question: Find the amplitude, period, and range of the cosine function f(x) = cos(x). How many complete cycles are there within the interval [0, 6Ο]? Identify all the x-intercepts of f(x).
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What is the variance of the numbers 2, 5, 7, 10, and 12?