Actuarial Outpost Weekly Practice Questions for Exam C
 Register Blogs Wiki FAQ Calendar Search Today's Posts Mark Forums Read
 FlashChat Actuarial Discussion Preliminary Exams CAS/SOA Exams Cyberchat Around the World Suggestions

 Upload your resume securely at https://www.dwsimpson.com to be contacted when new jobs meet your skills and objectives.

 Short-Term Actuarial Math Old Exam C Forum

#21
04-30-2006, 12:43 PM
 sam_broverman Member Join Date: Feb 2005 Posts: 639

Frankie,

The level of difficulty is variable, but I think,
on average, these questions are about the same
level as actual exam questions.

Sam Broverman
#22
05-01-2006, 09:29 AM
 sam_broverman Member Join Date: Feb 2005 Posts: 639
May 1 Question

You can find the question at:
http://www.sambroverman.com/may1c.pdf

Sam Broverman
2brove@rogers.com
#23
05-03-2006, 12:47 AM
 alphaace Member Join Date: Dec 2005 Posts: 1,099
February 13th question

Hi,

I agree with your solution up to the point ln (n) < 4.605. However if the max integer value of n is as the solution says 100, then ln(n) = 4.605170186 which is greater than 4.605. So shouldn't n really be 99?

Thanks,
Greg
#24
05-03-2006, 10:36 AM
 sam_broverman Member Join Date: Feb 2005 Posts: 639

Greg,

You are right. Based on the Exam C Chi-Square table
value of 9.210 , we get n < 99.99 , so the max n should have
been 99. I chose numbers that cut the inequality
too close. I'll post a correction. Thanks for mentioning that.

SB
#25
05-08-2006, 09:38 AM
 sam_broverman Member Join Date: Feb 2005 Posts: 639
May 8 Question

You can find the question at:
http://www.sambroverman.com/may8c.pdf

Sam Broverman
2brove@rogers.com
#26
05-08-2006, 04:44 PM
 alphaace Member Join Date: Dec 2005 Posts: 1,099

I am a bit confused why for the final answer you put f '(0) = -.8. I thought we were asked to find the natural cubic spline so wouldn't we in fact need three functions there in terms of x?

Thanks,
Greg R.
#27
05-09-2006, 08:07 PM
 sam_broverman Member Join Date: Feb 2005 Posts: 639

What I meant was to ask for was f'(0) .
I have posted a revised version of the question.

SB
#28
05-10-2006, 11:00 AM
 Sherri Join Date: Mar 2006 Posts: 25

the question has not pointed out that we must use natural cubic spline!
hence i can use interpolation polynomials, and i work it out that
f(x) = x^3 - x (it fits the sample well )
so f'(0)=-1.
doesn't it make sense?
thanks
#29
05-10-2006, 12:17 PM
 sam_broverman Member Join Date: Feb 2005 Posts: 639

Sherri,

question doesn't make sense. When I revised
the question, somehow I deleted the part of
the question indicating that it is a natural
cubic spline that is to be found. I'll revise
the revision shortly. Thanks for pointing that out.

Sam Broverman
2brove@rogers.com
#30
05-15-2006, 11:00 AM
 sam_broverman Member Join Date: Feb 2005 Posts: 639
May 15 Question

You can find the question at:
http://www.sambroverman.com/may15c.pdf

Good luck to all taking the exam.
I will resume posting questions of the week in
a month or so.

Sam Broverman
2brove@rogers.com