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#1
02-21-2006, 10:03 PM
 LoneGirl Member SOA Join Date: Oct 2003 Location: Indianapolis Studying for NOTHING! Posts: 7,846
ASM 12.14

I am confused about how they got tp20 in this problem. I thought the definition of tpx was s(x+t)/s(x). So why wouldn't the numerator in this problem be (50/(70+x))^3 instead of (50/(50+x))^3?
#2
02-21-2006, 11:04 PM
 Abraham Weishaus Member SOA AAA Join Date: Oct 2001 Posts: 6,195

You could use 70+t (where t is duration) or 50+x (where x is age): then you'd integrate t starting at 0 (instead of x starting at 20). It amounts to the same thing.

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