MIH451 7. The number of claims in a period has a geometric distribution with mean 4. The amount of each claim X follows Pr(X-x) 0.25, x = 1, 2, 3, 4, The number of claims and the claim amounts ar...
A portfolio of car insurance claims has claim amounts following the distribution 7 x 3307 f(x)(330+x The number of claims from this portfolio has a Poisson distribution with a mean of 500 per year. The premium income from this portfolio is a total of £30 000 per year. The insurer has an initial surplus of £2000. (a) Find the security loading factor for this example. (b) By assuming that the aggregate claims distribution is approximately nomal what is the probability...
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...
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...
The number of claims in a year, N, on an insurance policy has a Poisson distribution with mean 0.25. The numbers of claims in different years are mutually independent. Calculate the probability of 3 or more claims over a period of 2 years
3. Consider a discrete random variable X which follows the geometric distribution f(x,p) = pr-1(1-p), x = 1.2. . . . , 0 < p < 1. Recall that E(x) (1-p) (a) Find the Fisher information I(p). (b) Show that the Cramer-Rao inequality is strict e) Let XX ~X. Find the maximum likelihood estimator of p. Note that the expression you find may look complicated and hard to evaluate. (d) Now modify your view by setting μ T1p such that...
The annual frequency of claims against a single policy in a certain portfolio follows the distribution: P(N-0) 0.6, P(N-1) 0.25, P(N-2)-0.10, P(N-3) 0.0:5 There are 900 policies in this portfolio. Current staffing levels can handle as many as 580 claims against this portfolio in a year. If the annual claim count exceeds 580, then additional help wll be hired. The number of claims against different policies are independent. Calculate the probability that current staffing levels are adequate for next year....
Need help with this Problem 4 A discrete random variable X follows the geometric distribution with parameter p, written X ~Geom(p), if its distribution function is fx(x) = p(1-p)"-1, xe(1, 2, 3, . . .} The Geometric distribution is used to model the number of flips needed before a coin with probability p of showing Heads actually shows Heads. a) Show that Ix(z) is indeed a probability inass function, i.e., the sum over all possible values of z is one...
Within a certain period of time, let n be the number of health claims (the amount the insurance company pays the insured) of an insurance company, and suppose that the sizes of the claims areXi,... , Xn i.i.d Negative Expo nential with parameter ?. Let P be the premium charged or each policy (the amount the insured pays up front and let Sn-Xi+...+Xn. Assume the total amount of the claims should not exceed the total premium for the rn policies...
The number of automobiles entering a tunnel per 2-minute period follows a Poisson distribution. The mean number of automobiles entering a tunnel per 2-minute period is four. (A) Find the probability that the number of automobiles entering the tunnel during a 2minute period exceeds one. (B) Assume that the tunnel is observed during four 2-minute intervals, thus giving 4 independent observations, X1, X2, X3, X4, on a Poisson random variable. Find the probability that the number of automobiles entering the...
You are given that a random variable, N, has the geometric distribution, 3-1 PIN = n] = _ for n=1, 2, ,. Random variables, 偶; j=1, 2, . ) do not depend on N and are independent with the common exponential distribution, with the mean equal to θ 2, or equivalently (2)-, e-0.5x, for x 〉 0. Consider a random sum, 1. Derive the marginal expectation of S 2. Derive the marginal variance of S. 3. Find the marginal second...