A random variable X can be modeled by the exponential distribution with ẞ = 4. (a) Complete the following sentence. The distribution of X is ? (b) Find P(2≤ X ≤4). Use four decimals. , with E(X) = and SD(X) = |. (c) Find the 25-th percentile of X. Use two decimals in your answer. X25 (d) Find P(X > 8.5). Use four decimals in your answer.

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