There are three risk classes in a pool of insureds under a whole life insurance policy. 34% of the insureds are in Class D, 28%
of the insureds are in Class E, and the rest are in Class F. A sample of 25 insureds is randomly selected from this pool. Let D, E, and F refer to the number of insureds selected in this sample from their respective groups. Calculate Var(D)/Var(E) - Var(D)/Var(F). A 0.070.
B. 0.129.
C. 0.16.
D. 0.217.
E. 0.265.
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