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Forum: MAS-I 10-30-2018, 10:04 AM
Replies: 509
Views: 78,790
Posted By MathDoctorG
I didn't see any others that were defective. I...

I didn't see any others that were defective. I know there are people that are appealing number #41, and I wish them luck, but I don't see it.

I don't know that more appeals would result in a...
Forum: MAS-I 10-29-2018, 05:44 PM
Replies: 509
Views: 78,790
Posted By MathDoctorG
Just got the last video posted. As always,...

Just got the last video posted. As always, please let me know if you find mistakes, or if you have any questions.
Forum: MAS-I 10-29-2018, 11:27 AM
Replies: 509
Views: 78,790
Posted By MathDoctorG
The ISLR statement says that the ratio of the...

The ISLR statement says that the ratio of the actual variances (using the true but unknown \sigma^2 ) should be equal to the VIF.

I think that what is shown in Frees is that in order to go from...
Forum: MAS-I 10-27-2018, 01:36 PM
Replies: 509
Views: 78,790
Posted By MathDoctorG
I have these and the ones that Donald requested...

I have these and the ones that Donald requested finished now, just uploaded #44.

As always, the video solutions for this exam will be free samples until the next sitting, so just go to the seminar...
Forum: MAS-I 10-26-2018, 02:37 PM
Replies: 509
Views: 78,790
Posted By MathDoctorG
Suppose you take a series with a positive trend,...

Suppose you take a series with a positive trend, and you negate every term. That gives you a new series with a negative trend. However, the acf values will end up the same.
Forum: MAS-I 10-26-2018, 02:24 PM
Replies: 509
Views: 78,790
Posted By MathDoctorG
I agree.

I agree.
Forum: MAS-I 10-26-2018, 02:05 PM
Replies: 509
Views: 78,790
Posted By MathDoctorG
I don't think I can start recording until...

I don't think I can start recording until tomorrow, and I don't think I'll finish tomorrow.

If y'all want to make a list of ones I should try to do first, that'd be fine.
Forum: Long-Term Actuarial Math 09-07-2018, 06:38 PM
Replies: 13
Views: 1,349
Posted By MathDoctorG
Your problem isn't terribly well defined, but I...

Your problem isn't terribly well defined, but I think the point that may be helpful is to recognize that
\text{E}[Y] = e_{x:\overline{5}|}

Also, having {}_4p_x = 5.5 isn't typically allowed.
Forum: Long-Term Actuarial Math 09-03-2018, 02:14 PM
Replies: 568
Views: 93,890
Posted By MathDoctorG
They rolled the other 16 into a first payment of...

They rolled the other 16 into a first payment of the quarterly annuity. With an annual payment of 4(16), the payments for that annuity will be 16 at time 0, 16 at time 0.25, 16 at 0.5 and 16 and...
Forum: Long-Term Actuarial Math 08-23-2018, 04:44 PM
Replies: 5
Views: 1,610
Posted By MathDoctorG
I agree with this. I believe that you are...

I agree with this. I believe that you are referring to the LTAM-21-18 study note here.



Couple things. First, the notation is that c is the factor for age, not 1+c. But the main answer is...
Forum: Short-Term Actuarial Math 08-22-2018, 02:03 PM
Replies: 7
Views: 1,062
Posted By MathDoctorG
If you like, you can request email notification...

If you like, you can request email notification whenever someone responds to your topics:

https://d.pr/i/ooks1G+

https://d.pr/i/GXkvc7+

https://d.pr/i/Ddrkb3+

https://d.pr/i/Exww8c+
Forum: Long-Term Actuarial Math 08-16-2018, 10:38 AM
Replies: 4
Views: 600
Posted By MathDoctorG
The key underlying idea here is that when you...

The key underlying idea here is that when you condition a uniform distribution to land in some subinterval of the original range of values, the result is still uniform. So, once you say that both...
Forum: MAS-I 06-21-2018, 07:52 PM
Replies: 509
Views: 78,790
Posted By MathDoctorG
Yes, some will be added for the new lessons. ...

Yes, some will be added for the new lessons. Right now the counts are 850 for the problem system, another 400 or so in the sample exams and 250 or so more worked out in the lessons.
Forum: MAS-I 06-18-2018, 06:58 PM
Replies: 509
Views: 78,790
Posted By MathDoctorG
It sounds like you may already be aware of this,...

It sounds like you may already be aware of this, as a previous TIA user, but just in case, the MAS-I TIA course has around 1500 problems - most already have a video solution. Also, I answer...
Forum: MAS-I 05-15-2018, 11:15 AM
Replies: 0
Views: 1,142
Posted By MathDoctorG
TIA MAS-I video and written solutions posted

I've finished working the exam, and I have the video solutions as well as the handwritten solutions pdf posted. Go to the MAS-I Lessons page (http://www.theinfiniteactuary.com/lessons/35), then go to...
Forum: Long-Term Actuarial Math 05-15-2018, 10:41 AM
Replies: 0
Views: 1,051
Posted By MathDoctorG
TIA MLC Spring 2018 Written solutions posted

Sorry about the delay, everybody, we werenít expecting the exam to come out until Friday. Anyway, here you go!

TIA MLC Seminar (http://www.theinfiniteactuary.com/lessons/10)

Go to the sample...
Forum: Long-Term Actuarial Math 05-14-2018, 11:55 PM
Replies: 560
Views: 118,834
Posted By MathDoctorG
Sorry about the delay, everybody, we weren’t...

Sorry about the delay, everybody, we weren’t expecting the exam to come out until Friday. Anyway, here you go!

TIA MLC Seminar (http://www.theinfiniteactuary.com/lessons/10)

Go to the sample...
Forum: MAS-I 05-14-2018, 12:18 PM
Replies: 634
Views: 117,243
Posted By MathDoctorG
This is correct. Also, I will be very...

This is correct.

Also, I will be very surprised if the pass mark were to be above 60.5.
Forum: MAS-I 05-12-2018, 12:21 AM
Replies: 634
Views: 117,243
Posted By MathDoctorG
I would expect it to be in a range similar to...

I would expect it to be in a range similar to what weíve seen on exam S.

Beyond that, I havenít the foggiest. I thought Fall Ď17 was a bit easier than Spring Ď17, but the pass mark for Fall was...
Forum: MAS-I 05-10-2018, 07:06 PM
Replies: 634
Views: 117,243
Posted By MathDoctorG
I just posted the last video to the website, so...

I just posted the last video to the website, so within a few minutes, they should all be available. As always, please tell me when you find errors.

I did make the handwritten solutions pdf...
Forum: MAS-I 05-09-2018, 07:02 PM
Replies: 634
Views: 117,243
Posted By MathDoctorG
Hey folks! I've finished working through the...

Hey folks!

I've finished working through the exam, and I have the first 15 video solutions posted. Go to the MAS-I Lessons page (http://www.theinfiniteactuary.com/lessons/35), then go to the...
Forum: MAS-I 05-07-2018, 09:06 PM
Replies: 634
Views: 117,243
Posted By MathDoctorG
Iím planning to work on it as soon as it comes...

Iím planning to work on it as soon as it comes out. My guess is sometimes tomorrow, and then it usually takes me a day or so.
Forum: Investment / Financial Markets 05-06-2018, 02:35 PM
Replies: 156
Views: 56,478
Posted By MathDoctorG
James wrote this app for iOS a few years ago...

James wrote this app for iOS a few years ago which is intended to mock up the results that you get from the Prometric calculator.

FREE TIA Normal Calculator iOS app...
Forum: MAS-I 05-06-2018, 02:26 PM
Replies: 634
Views: 117,243
Posted By MathDoctorG
If I am recalling correctly, what happened was...

If I am recalling correctly, what happened was that the original draft S syllabus said 40 questions, and when the final version came out, that number had been removed. The exam then proceeded to...
Forum: MAS-I 05-04-2018, 10:38 AM
Replies: 634
Views: 117,243
Posted By MathDoctorG
The only case where this comes up (that we need...

The only case where this comes up (that we need to worry with) is testing the Poisson distribution against the negative binomial. It happens because the Poisson is a boundary case of the negative...
Showing results 1 to 25 of 300

 

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