Assume that a certain insurer has 1,000 policyholders of type 1 and 2,500 policyholders of type 2. Policyholders will have losses of either 0, 50, 200, or 500 with the following probabilities: Loss Pr(Loss Type 1) Pr(Loss Type 2) 0 50 200 500 0.70 0.15 0.10 0.05 0.80 0.10 0.07 0.03 All policyholders have an ordinary deductible of 100 and all losses are independent. (a) Calculate the loss elimination ratio for the deductible. [.436] (b) Calculate the mean and variance of the aggregate claims. [77,500, 20,947,500] (c) Using the normal approximation, calculate the probability that the total aggregate claims exceed $90,000 [.0032] (d) Again using the normal approximation, find the 99% Value-at-Risk. [88,146]

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Assume that a certain insurer has 1,000 policyholders of type 1 and 2,500 policyholders of type 2.
Policyholders will have losses of either 0, 50, 200, or 500 with the following probabilities:
Loss Pr(Loss Type 1) Pr(Loss|Type 2)
0.70
0.80
50
0.15
0.10
200
0.10
0.07
500
0.05
0.03
All policyholders have an ordinary deductible of 100 and all losses are independent.
(a) Calculate the loss elimination ratio for the deductible. [436]
(b) Calculate the mean and variance of the aggregate claims. [77,500, 20,947,500]
(c) Using the normal approximation, calculate the probability that the total aggregate claims exceed
$90,000 [.0032]
(d) Again using the normal approximation, find the 99% Value-at-Risk. [88,146
Transcribed Image Text:Assume that a certain insurer has 1,000 policyholders of type 1 and 2,500 policyholders of type 2. Policyholders will have losses of either 0, 50, 200, or 500 with the following probabilities: Loss Pr(Loss Type 1) Pr(Loss|Type 2) 0.70 0.80 50 0.15 0.10 200 0.10 0.07 500 0.05 0.03 All policyholders have an ordinary deductible of 100 and all losses are independent. (a) Calculate the loss elimination ratio for the deductible. [436] (b) Calculate the mean and variance of the aggregate claims. [77,500, 20,947,500] (c) Using the normal approximation, calculate the probability that the total aggregate claims exceed $90,000 [.0032] (d) Again using the normal approximation, find the 99% Value-at-Risk. [88,146
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