Question: X is a random variable with an exponential distribution with parameter = .7 Thus the cdf of X is f(x) = .7 e.7 x

X is a random variable with an exponential with parameter λ = .7 Thus the cdf of X is f(x) = .7 e−.7 x for x ≥ 0.
d) Calculate the probability that X > 6. Use the pexp function
e) Calculate the probability that X is at least 1 more than its expected value.

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