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Old 10-11-2007, 07:04 PM
EaglesFan EaglesFan is offline
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Default SOA Sample Questions, #58

In the solution using the Bayes Method, when it says it is proportional to Lamda to the 335th power, why is it not to the 334th if there is a Lamda in the denominator? (Probably wouldn't make a difference in the answer choice, but I'm curious).
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Old 10-24-2007, 11:41 AM
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It is proportional to lambda to the 334th power... I think it's a typo, because they should have it look like: so it's more obviously a gamma distribution with parameters 335 and 1/2000. Remember the gamma distribution has an "extra" lambda in the denominator.
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Old 10-24-2007, 11:47 AM
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Thanx.....Kind of surprising that in all this time SOA hasn't cleaned up the typo. It'd also be kind of cool if they invested an hour or two to give us some sample FE questions for Exam C (which I think they sort of promised or at least hinted were forthcoming at some point) but hey....C'est Lavie.
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Old 01-26-2019, 07:05 AM
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Can I apply conjugate shortcut for this question?
E.g. aplha’ = alpha + x1 +x2
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Old 01-26-2019, 08:39 AM
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Quote:
Originally Posted by phuwanut1412 View Post
Can I apply conjugate shortcut for this question?
E.g. aplha’ = alpha + x1 +x2
Yes.
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Old 01-26-2019, 10:29 AM
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Quote:
Originally Posted by EaglesFan View Post
Thanx.....Kind of surprising that in all this time SOA hasn't cleaned up the typo. It'd also be kind of cool if they invested an hour or two to give us some sample FE questions for Exam C (which I think they sort of promised or at least hinted were forthcoming at some point) but hey....C'est Lavie.
I looked at the sample solution and I didn't see the statement that it's proportional to lambda to the 335th. It states it's a gamma with parameter 335. It does however have an exponent of 105 which should be 334.
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