An article suggests the uniform distribution on the interval (8.5, 18) as a model for depth (cm) of the bioturbation layer in sediment in a certain region. (a) What are the mean and variance of depth? (Round your variance to two decimal places.) mean variance (b) What is the cdf of depth? 0 F(x) = 1 x < 8.5 8.5 x 18 18 ≤ x (c) What is the probability that observed depth is at most 10? (Round your answer to four decimal places.)

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