In: Statistics and Probability
Let X be an exponential random variable with parameter λ, which means that fX(x) = λe^(−λx) * u(x).
(a) For x > 0, find P(X ≤ x).
(b) For x2 > x1 > 0, find P(x1 ≤ X ≤ x2).
(c) For x > 0, find P(X ≥ x).
(d) Segment the positive real line into three equally likely disjoint intervals.