

FlashChat  Actuarial Discussion  Preliminary Exams  CAS/SOA Exams  Cyberchat  Around the World  Suggestions 


Thread Tools  Display Modes 
#381




Quote:
If you collect the factors of x outside the exponential, you have (1/x)^alpha in the numerator, and another x in the denominator, for a total of 1/x^{alpha+1}. In your expression, you have 1/beta^5, with beta as your variable, so 5 = alpha + 1 and alpha = 4. 
#382




Quote:
Did you forget this ? Or else you can plug alpha=4 and theta=2 into the density of inverse gamma to verify it.
__________________

#383




Quote:
Var(X) = E(Var(X  class)) + Var(E(X  class)) = EPV + VHM So EPV = E(Var(X  class)) and VHM = Var(E(X  class))
__________________

#384




Quote:
VHM is literally the variance of the means  the variance of the expected values of class A and class B. Do you mean: Sample Variance = E(Var(mean/class))+Var(E(mean/class)) = EPV + VHM = v+a Quote:
I was stuck on level 5.6 for a frustrating week, then I scored 89% on my last ADAPT (had 3 hard questions that I recognized from SOA, had 3 lucky guesses..) and made it to level 7.1 I am not doing level 7.1 exams, though. The trouble is, I still need to reference formula sheet for certain formulas. From those I would say learn Polar method, kernels and memorize the TVar formula? I ran into a good amount of questions on polar & kernels on ADAPT. x: 
#385




memorize the TVaR formula for lognormal and normal,you mean?
__________________
 Want to connect on LinkedIn? PM me! 
Thread Tools  
Display Modes  

