Past data on a portfolio of group policyholders are given in table 19.5. Estimate the Buhlmann-straub Credibility premiums to be charged to each group in year 4.

EXERCISES 431 Table 19.5 Data for Exercise 19.2. Policyholder Year 1 - 3 Claims No. in group Claims No. in group Claims No. in group 2 20,000 100 18,000 75 - 25,000 120 17,000 110 19,000 90 26,000 150 70 30,000 175 35,000 180 19.2 Past data on a portfolio of group policyholders are given in Table 19.5. Estimate the Bhlmann-Straub credibility premiums to be charged to each group in year 4. EXERCISES 431 Table 19.5 Data for Exercise 19.2. Policyholder Year 1 - 3 Claims No. in group Claims No. in group Claims No. in group 2 20,000 100 18,000 75 - 25,000 120 17,000 110 19,000 90 26,000 150 70 30,000 175 35,000 180 19.2 Past data on a portfolio of group policyholders are given in Table 19.5. Estimate the Bhlmann-Straub credibility premiums to be charged to each group in year 4