The distribution of liability claims X on a company has density proportional to (2 + x) −2 for x ≥ 0. What is the probability that claims are between 1 and 4?
The distribution of liability claims X on a company has density proportional to (2 + x)...
QUESTION 4 The bivariate beta type Il distribution has the probability density function a-1,b-1 x>0, y>0 (1+x+y)atbte, where K 「(a)「(b)「(c) = (a) Derive the marginal probability density function of X (5 (b) Find the E (XYs) (5 QUESTION 4 The bivariate beta type Il distribution has the probability density function a-1,b-1 x>0, y>0 (1+x+y)atbte, where K 「(a)「(b)「(c) = (a) Derive the marginal probability density function of X (5 (b) Find the E (XYs) (5
Random variable x has a uniform distribution defined by the probability density function below. Determine the probability that x has a value of at least 220. f(x) = 1/100 for values of x between 200 and 300, and 0 everywhere else a)0.65 b)0.80 c)0.75 d)0.60
Question 3-6 An insurance company each policy follows a Poisson distribution with a mean 3. has issued 75 policies. The number of claims filed under Assuming that the claims filed by each policyholder are independent of each other, what is the approximate probability that more than 250 claims will be filed by the group of policyholders? A) 0.048 B 0.168 C) 0.424 D) 0.576 E) 0.952 Question 3-7 650X and let X have the following probability density function: Let Y...
2. Suppose a r.v. X has the density function 2 x, for 0<x<1 f(x) = 10, otherwise Observe X independently for three times, let y denote the number of an event {X<0.5) occurring in three times. (1) What is the probability of the event {X<0.5}? (2) What is the probability distribution of Y ? Write out its probability mass function
The “More-Likely-Than-Not” distribution on the unit internal has density function f (x) = kx2(1 − x) for 0 < x < 1. It is the “go to” distribution that TV weatherpersons use when they need to state tomorrow's probability of rain on a given day during the months November–March. They draw a random decimal from this distribution and announce it as the required probability. (a) Find the constant k for which f (x) is a valid density. (b) Compute the...
A mixed random variable X has the cumulative distribution function e+1 (a) Find the probability density function. (b) Find P(0< X < 1).
An insurance company has issued 100 policies. The number of claims filed under each policy follows a Poisson distribution with a mean 2. Assuming that the claims filed by each policyholder are independent of each other, what is the approximate probability that more than 220 claims will be filed by the group of policyholders? B) 0.159 A) 0.079 C) 0.444 D) 0.556 E) 0.921 Question 2-20 An actuary is studying claim patterns in an insurer's book of business. He compiles...
5. The Exponential(A) distribution has density f(x) = for x<0' where λ > 0 (a) Show/of(x) dr-1. (b) Find F(x). Of course there is a separate answer for x 2 0 and x <0 (c Let X have an exponential density with parameter λ > 0 Prove the 'Inemoryless" property: P(X > t + s|X > s) = P(X > t) for t > 0 and s > 0. For example, the probability that the conversation lasts at least t...
Problem 1-5 1. If X has distribution function F, what is the distribution function of e*? 2. What is the density function of eX in terms of the densitv function of X? 3. For a nonnegative integer-valued random variable X show that 4. A heads or two consecutive tails occur. Find the expected number of flips. coin comes up heads with probability p. It is flipped until two consecutive 5. Suppose that PX- a p, P X b 1-p, a...