exam/p - 金融分析師

The cumulative distribution function for health care costs experienced

by a policyholder is modeled by the function


F(x) = 1 - exp(-x/100) , x>0


The policy has a deductible of 20. An insurer reimburses the policyholder

for 100% of health care costs between 20 and 120 less the deductible.

Health care costs above 120 are reimbursed at 50%.

Let G be the cumulative distribution function of reimbursements

given that the reimbursement is positive.

Calculate G(115).


解答是 G(115)=F(130)

不過我115算出來的X是150

不知道是不是我哪裡算錯了

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