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 Showing results 1 to 25 of 300 Search took 0.06 seconds. Search: Posts Made By: Jim Daniel
 09-12-2019, 11:20 AM Replies: 7 Views: 2,142 Posted By Jim Daniel False. The variance of a discrete uniform on... False. The variance of a discrete uniform on the integers a through b is the same as for one on a - (a - 1) = 1 through b - (a - 1) = b - a + 1 and so is [(b - a + 1)^2 - 1] / 12.
 08-31-2019, 06:02 PM Replies: 7 Views: 1,243 Posted By Jim Daniel Why not write E[(S - 100)+] = E[S] - E[S ^ 100}?... Why not write E[(S - 100)+] = E[S] - E[S ^ 100}? Then E[S] = 160 easily. S can only equal 0, 40, 80, 120, 160, etc, so S ^ 100 can only equal 0, 40, 80, 100; the probabilities of these values are...
 Forum: Long-Term Actuarial Math 07-12-2019, 02:47 PM Replies: 78 Views: 12,941 Posted By Jim Daniel September face-to-face LTAM seminar My next face-to-face exam-prep seminar for LTAM is 5 - 11 September. For detailed information, see my website http://www.actuarialseminars.com .
 Forum: Long-Term Actuarial Math 07-12-2019, 02:44 PM Replies: 749 Views: 130,732 Posted By Jim Daniel Congratulations; condolences; seminars Congratulations to those who passed LTAM! If STAM is next on your list, please consider my face-to-face exam-prep seminar for STAM---the next is in August. Detailed information is on my website...
 06-30-2019, 03:27 PM Replies: 31 Views: 6,531 Posted By Jim Daniel Face-to-face exam-prep STAM seminar My face-to-face exam-prep seminar for the October sitting for Exam STAM is scheduled for 15 - 21 August; see http://www.actuarialseminars.com for detailed information. It will probably be a small...
 05-23-2019, 03:51 PM Replies: 128 Views: 40,846 Posted By Jim Daniel That depends on your approach. If you deal with... That depends on your approach. If you deal with ordinary deductibles by working with the distribution of the loss amount X conditioned on X > d then that's the same as working with the amount per...
 05-23-2019, 02:52 PM Replies: 128 Views: 40,846 Posted By Jim Daniel The data are truncated below at 500, as in a... The data are truncated below at 500, as in a franchise deductible with d = 500.
 Forum: Long-Term Actuarial Math 04-27-2019, 03:35 PM Replies: 749 Views: 130,732 Posted By Jim Daniel Will this help? Suppose that Jose's salary for... Will this help? Suppose that Jose's salary for the year of age 45 to 46 is 50,000 and that he'll get a 3% raise at the beginning of each year starting a year from now. Then salaries start looking...
 04-23-2019, 06:25 PM Replies: 128 Views: 40,846 Posted By Jim Daniel Yes, but then the derivative of -1000/theta... Yes, but then the derivative of -1000/theta should have a plus sign. They just put the negative sign in an odd place.
 04-23-2019, 10:05 AM Replies: 128 Views: 40,846 Posted By Jim Daniel A Beta RV with a = b = 1 is a Uniform RV on 0 to... A Beta RV with a = b = 1 is a Uniform RV on 0 to theta.
 Forum: Long-Term Actuarial Math 04-18-2019, 01:13 PM Replies: 749 Views: 130,732 Posted By Jim Daniel Recently, uniform distributions have come up on... Recently, uniform distributions have come up on about 0.1% of the points, the forever-constant-force exponential model about 2%, constant forces in multi-state settings about 2-to-3%, and the...
 04-12-2019, 10:18 AM Replies: 128 Views: 40,846 Posted By Jim Daniel Seminar registration still open To those who just learned that they didn't pass the February sitting, my condolences. In case you're interested, registration for my 2 - 8 May face-to-face exam-prep seminar is still open. Since...
 04-12-2019, 10:15 AM Replies: 106 Views: 43,345 Posted By Jim Daniel Seminar registration still open Congratulations to those who passed, condolences to those who didn't. In case you didn't pass and are interested, registration for my 2 - 8 May face-to-face exam-prep seminar is still open. Since...
 Forum: Long-Term Actuarial Math 03-13-2019, 05:53 PM Replies: 749 Views: 130,732 Posted By Jim Daniel In the first case, one force of mortality is 60%... In the first case, one force of mortality is 60% of the other AT ONE SPECIFIC AGE. In the second case, one force of mortality is 50% of the other AT ALL AGES. By the way, the Uniform model has...
 Forum: Long-Term Actuarial Math 03-05-2019, 07:18 PM Replies: 3 Views: 960 Posted By Jim Daniel I meant the formula for the variance in terms of... I meant the formula for the variance in terms of Ax and double-force Ax and the discount rate d. Just replace each by its mthly version. When you say you are given "the second moment of a-double...
 Forum: Long-Term Actuarial Math 03-03-2019, 01:00 AM Replies: 3 Views: 960 Posted By Jim Daniel Why would you want this, when the variance of the... Why would you want this, when the variance of the a-double-dot(m) random variable looks just like the formula for the variance when m = 1, except you put a superscript m on every term?
 02-17-2019, 10:39 AM Replies: 106 Views: 43,345 Posted By Jim Daniel Results on pilot questions are not counted in... Results on pilot questions are not counted in determining your grade.
 Forum: Long-Term Actuarial Math 02-16-2019, 12:40 PM Replies: 749 Views: 130,732 Posted By Jim Daniel It would help if you precisely quoted the problem... It would help if you precisely quoted the problem and its solution and its source. What you wrote as the solution is weird---the numerator looks as though you're dealing with a continuous annuity...
 02-15-2019, 05:49 PM Replies: 128 Views: 40,846 Posted By Jim Daniel Daniel face-to-face exam-prep seminar I'll be teaching my face-to-face STAM seminar 2 - 8 May for the June exam. For detailed information, see my website www.actuarialseminars.com .
 02-15-2019, 05:45 PM Replies: 106 Views: 43,345 Posted By Jim Daniel Daniel face-to-face exam-prep seminar For anyone now planning on the June STAM exam, I'll be teaching my STAM face-to-face seminar 2 - 8 May. Detailed information is on my website www.actuarialseminars.com .
 Forum: Long-Term Actuarial Math 02-13-2019, 12:14 PM Replies: 749 Views: 130,732 Posted By Jim Daniel Seminar hotel cutoff The hotel where I hold my 14 - 20 March face-to-face LTAM seminar has a cutoff of Friday 15 February for the reduced rate for a sleeping room. If you are planning to register for my seminar, you an...
 02-12-2019, 05:46 PM Replies: 4 Views: 808 Posted By Jim Daniel You need to be a little careful with this... You need to be a little careful with this interpretation, since r need not be a whole number. It's OK to roughly thing of it as Terence described, but don't get flustered if you have r=2.3 or some...
 02-01-2019, 03:18 PM Replies: 11 Views: 1,731 Posted By Jim Daniel Aha. I see that we were talking about two... Aha. I see that we were talking about two different things. I was saying that if, given q, X1 and X2 were mutually independent (both with the same q), then the unconditional X1 and unconditional...
 02-01-2019, 12:03 PM Replies: 11 Views: 1,731 Posted By Jim Daniel The q's can't be drawn independently for each X.... The q's can't be drawn independently for each X. Once q is given, the distribution of each X is determined. Suppose a variable q can be 0 or 1, 50/50. Suppose that X | q = 0 can be 1 or 2,...
 02-01-2019, 10:22 AM Replies: 11 Views: 1,731 Posted By Jim Daniel German, The original post didn't say whether... German, The original post didn't say whether it was S | q---that is, the same q for all m of the Xj. [I think that this was an old exam question, and that that question said it was S | q.] With...
 Showing results 1 to 25 of 300

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