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The following statistics have been provided in relation to a particular country and one of its regions: Region A Country Age Population Number Population Number band exposed of Deaths exposed of Deaths 18-35 25.000 25 500.000 1,000 36-50 50.000 80 125,000 375 $1-70 70,000 170 110,000 500 (1) Calculate: (a) the mortality rates for each age band both for Region A and Country (b) the crude mortality rate for cach of Region A and Country the directly standardised mortality rate for Region A by reference to the Country (d) the standardised mortality ratio for Region A by reference to the Country [5] (ii) Comment on the results. [2] [Total 7] The following is an extract of a decrement table assumed for a funeral plan, showing deaths (d) and withdrawals (w): Age x (allx (ad (ad) 85 10,000 1,400 2,300 86 6.300 1,000 1,100 87 4.200 It has been established that the independent rates of decrement of withdrawal are now only 50% of those assumed in the table above for the ages of 85 and 86. The underlying independent mortality rates are unchanged. Construct a revised decrement table to reflect this change. [7]