In Exercises 1-12, verify Property 2 of the definition of a probability density function over the given interval. 1. f(x) = 2x, [0, 1] 3. f(x) = 3, [0,] 5. f(x) = x?, [1,3] 2. f(x) = x, [1, 3] 4. f(x) = }. [3,8] 6. f(x) = , [0, 4] 7. f(x) = - (1, e]

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