October 2011 Exam C4 Progress Thread

[alexcrewe]

Originally Posted by actuary44

For me, when I see "rarely tested," I skim through the material, and if it makes sense to me, I'll go through the trouble to learn it, but if I start going "WTF?" then I pretty much just skip it.

FWIW, this is what I did in June, and it worked out really well.

Originally Posted by dragoncub

Justin, when you went through the flash cards did you memorize all of the cards? even the 1 star cards?
And how are you doing on the SOA problems? are you using a formula sheet? Any idea on the percentage correct?

I've memorized probably 300+ of the 344 flashcards (I skipped all the one stars, since they have never been needed on any previous exams). I am doing OK on the SOA 289, but nothing to brag about. I chose to do the SOA set first, because I'm treating it as a review/refresher of concepts and getting better at pulling all the material together. I think it was a wise decision to memorize all the flashcards before working problems. I don't keep track of percentages; it's a little too early in the ballgame, and would probably cause discouragement.

[Scars]

Finished lesson 47.

Starting lesson 48.
Which is the second biggest section, measured by number of problems...53 of the suckers... 51 end of lesson, 2 quizzes.

[IKnewIt]

For some reason, I have a complete mental block on determining how to do continuity corrections. I always know when one is needed, but I never know whether to add 0.5 or subtract it (I know that sometimes it's not 0.5, but that's the most common). Any insight would be greatly appreciated. So far, I've just been adding every time, and that seems to be working in 90%+ of cases.

[Scars]

Originally Posted by IKnewIt

For some reason, I have a complete mental block on determining how to do continuity corrections. I always know when one is needed, but I never know whether to add 0.5 or subtract it (I know that sometimes it's not 0.5, but that's the most common). Any insight would be greatly appreciated. So far, I've just been adding every time, and that seems to be working in 90%+ of cases.

If you're trying to correct Pr (X > 50) then you'll want to look at Pr(X > 50.5)
If you're trying to correct Pr (X < 50) then you'll want to look at Pr(X < 49.5)

When I'm looking for greater than 50:
I want to be a little more than 50, because I can't be at 50.

When I'm looking for less than 50:
I want to be a little less than 50, because I can't be at 50.

[IKnewIt]

Originally Posted by Scars

If you're trying to correct Pr (X > 50) then you'll want to look at Pr(X > 50.5)
If you're trying to correct Pr (X < 50) then you'll want to look at Pr(X < 49.5)

When I'm looking for greater than 50:
I want to be a little more than 50, because I can't be at 50.

When I'm looking for less than 50:
I want to be a little less than 50, because I can't be at 50.

Thanks!

[Llanowan]

blegh. through C and most of D.1 on TIA. I'm doing basically no problems except those in the lectures, though... Also looks like work is gonna be rough for the next month or so. Gonna be a rough october for me! Guess I'll try and sign up for the 27th...

[Scars]

Getting my ass kicked on Buhlmann credibility. Printed of the Mahler-Dean free study note hoping to get a little clarity.

6 out of the first 20 right.
This doesn't look promising.

I always have a weak area on a major topic. This might be it.

[yashi911]

Starting again on the first of Sept....I hate studying...

[dballs33]

Originally Posted by IKnewIt

For some reason, I have a complete mental block on determining how to do continuity corrections. I always know when one is needed, but I never know whether to add 0.5 or subtract it (I know that sometimes it's not 0.5, but that's the most common). Any insight would be greatly appreciated. So far, I've just been adding every time, and that seems to be working in 90%+ of cases.

my method for continuity correction is the following:

1. FIRST, get either the Pr(X>=x) or Pr(X<=x expression). Always. Don't bother with the trying to figure out what to do with either the > or >= signs. So, if you want only greater than 50 claims, realize you want greater than or equal to 51 claims.

2. Then, make the range of what your searching for MORE inclusive. So, instead of wanting when it's greater than or equal to 51 claims, you now want greater than or equal to 50.5 claims.

p.s. don't forget the continuity correction isn't always .5. It's typically .5 because it's half of the units your measuring in, which is usually 1 unit. So, if your data is in increments of 500, then your continuity correction is 250.

edit: just realized you're aware of it not always being .5