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CATASTROPHE MODELING JOBS

#431
01-23-2011, 12:35 PM
 gugugug Member Join Date: Jan 2011 Posts: 136

ASM 6.17

I can't figure out where they get their tPx in the solutions.....mu is 1/(200-x) + 1/(100-x) so why in the solution is tPx = ((200-t)(100-t))/20,000 ? Does it make sense to multiply the two equations like that as if they are independent?

any help would be greatly appreciated.

Last edited by gugugug; 01-23-2011 at 12:59 PM..
#432
01-23-2011, 01:32 PM
 RDslippers Member SOA Join Date: May 2009 Location: A Pile of Sand Studying for fill in the blank Posts: 105

Quote:
 Originally Posted by gugugug ASM 6.17 I can't figure out where they get their tPx in the solutions.....mu is 1/(200-x) + 1/(100-x) so why in the solution is tPx = ((200-t)(100-t))/20,000 ? Does it make sense to multiply the two equations like that as if they are independent? any help would be greatly appreciated.
Try (but I just noticed all my subscripts in the integrals need to be changed to something like w,z,etc. but you get the idea):

$_tp_x = e^{-\int_x^{x+t} \mu_x dx} = e^{-\int_x^{x+t} \frac{1}{200-x} + \frac{1}{100-x} dx}$

Which equals,

$e^{-\int_x^{x+t} \frac{1}{200-x} dx} e^{-\int_x^{x+t} \frac{1}{100-x} dx}$

Then, by deMoivre,

$$$\frac{200-x-t}{200-x}$$$$\frac{100-x-t}{100-x}$$$

But, $x=0$, thus,

$\frac{(200-t)(100-t)}{200(100)}$

The rest follows as the solution suggests. The tricky part, I believe, is realizing you only integrate this to $100$.

Last edited by RDslippers; 01-23-2011 at 01:56 PM.. Reason: Note: subscripts in integrals need to be changed!
#433
01-23-2011, 01:54 PM
 kdiz Member Join Date: Aug 2010 Posts: 115

Finished all 5 of the B.2 lectures for TIA. Moving onto the problem set now.
#434
01-23-2011, 02:06 PM
 smwentum Member Join Date: Jul 2009 Location: lala land Studying for praxis II 0063/0061 College: college of duh! Favorite beer: apple juice Posts: 872

finished 10, going to try to finish 11 today
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Spoiler:

P FM MFE

C has loss models + asm 12th edition October 2012

VEE Finance - has cpcu materias, no idea when will take exam

VEE - ECONOMICS Macro - has book

MLC has asm -but it is out of date now

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#435
01-23-2011, 03:21 PM
 les_009 Member Join Date: May 2009 Posts: 66

Still stuck with B 1.5 TIA.....I have to say being online in Actuarial Outpost is a distraction....
#436
01-23-2011, 03:26 PM
 gugugug Member Join Date: Jan 2011 Posts: 136

I know there have been previous statements made about how chapter 10/B.2.1 is "fun", but right now I am super overwhelmed by the amount of notation....way more so than chapter 8/B.1.4

How long does it take you guys to get used to all the A bars and n E x 's?

Last edited by gugugug; 01-23-2011 at 04:46 PM..
#437
01-23-2011, 03:26 PM
 gugugug Member Join Date: Jan 2011 Posts: 136

is anyone going to try to study during the playoffs?

Last edited by gugugug; 01-23-2011 at 04:46 PM..
#438
01-23-2011, 06:50 PM
 smwentum Member Join Date: Jul 2009 Location: lala land Studying for praxis II 0063/0061 College: college of duh! Favorite beer: apple juice Posts: 872

Quote:
 Originally Posted by les_009 Still stuck with B 1.5 TIA.....I have to say being online in Actuarial Outpost is a distraction....
lol
__________________

Spoiler:

P FM MFE

C has loss models + asm 12th edition October 2012

VEE Finance - has cpcu materias, no idea when will take exam

VEE - ECONOMICS Macro - has book

MLC has asm -but it is out of date now

VEE STATISTICS APC FAP

"You must have long-range goals to keep you from being frustrated by short-range failures." - Charles C. Noble
#439
01-23-2011, 06:51 PM
 smwentum Member Join Date: Jul 2009 Location: lala land Studying for praxis II 0063/0061 College: college of duh! Favorite beer: apple juice Posts: 872

Quote:
 Originally Posted by gugugug I know there have been previous statements made about how chapter 10/B.2.1 is "fun", but right now I am super overwhelmed by the amount of notation....way more so than chapter 8/B.1.4 How long does it take you guys to get used to all the A bars and n E x 's?
i just learned that before i did the rest of the stuff, it makes things A Lot easier.
__________________

Spoiler:

P FM MFE

C has loss models + asm 12th edition October 2012

VEE Finance - has cpcu materias, no idea when will take exam

VEE - ECONOMICS Macro - has book

MLC has asm -but it is out of date now

VEE STATISTICS APC FAP

"You must have long-range goals to keep you from being frustrated by short-range failures." - Charles C. Noble
#440
01-23-2011, 08:15 PM
 ker8 Member SOA Join Date: Apr 2009 Studying for modules Posts: 864

i am not liking this material so far....i "got through" lesson 6, but i still don't know what the symbols mean hardly nor when to use what equation. I'm starting the problems in section 7 but it doesn't seem to be any better....i think i'm going to need to make a flow chart to see how everything connects to each other. I'm seriously envious right now of anyone who studied this in school....
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