# Question: Let the random variable X be equal to the number

Let the random variable X be equal to the number of days that it takes a high-risk driver to have an accident. Assume that X has an exponential distribution. If P(X < 50) = 0.25, compute P(X > 100 | X > 50).

## Answer to relevant Questions

Let F(x) be the cdf of the continuous-type random variable X, and assume that F(x) = 0 for x ≤ 0 and 0 < F(x) < 1 for 0 < x. Prove that if P(X > x + y | X > x) = P(X > y), Then F(x) = 1 − e−λx, 0 < x. Which implies ...The strength X of a certain material is such that its distribution is found by X = eY, where Y is N(10, 1). Find the cdf and pdf of X, and compute P(10, 000 < X < 20, 000). Let X have an exponential distribution with θ = 1; that is, the pdf of X is f(x) = e−x, 0 < x < ∞. Let T be defined by T = ln X, so that the cdf of T is G(t) = P(ln X ≤ t) = P(X ≤ et) (a) Show that the pdf of T is ...Find the mean and variance of X if the cdf of X is A certain raw material is classified as to moisture content X (in percent) and impurity Y (in percent). Let X and Y have the joint pmf given by (a) Find the marginal pmfs, the means, and the variances. (b) Find the ...Post your question