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  1. See my other post. What are you hoping to...

    The first one.

    See my other post. What are you hoping to accomplish by taking the derivative of a pdf?
  2. Let's break this down more. 1) You have a...

    Let's break this down more.

    1) You have a PDF, call it f(x), it is (2.5(200^2.5))/x^3.5 defined on range [200, infinity)

    2) To calculate your CDF, call it F(x), you would take the integral of...
  3. What function are you taking the derivative of?...

    I am saying the integral from 200 to x. The derivative of the original function comes to (-200^2.5/t^2.5). When you take the integral should it not come to (-1-(200^2.5/x^2.5) instead of...
  4. I have no idea what you are actually asking or...

    Hi everyone. This is probably a dumb question, but for this question the distribution function is F(x)= (2.5(200^2.5))/t^3.5 with the integral between 200 and x. I know that by taking the derivative...
  5. Thread: Soa #36

    by NoMoreExams
    Replies
    1
    Views
    4,136

    Copy/pasting is a bad idea... what's your...

    Copy/pasting is a bad idea... what's your question?
  6. Y1 = X1 + X2 and Y2 = X1/X2. Then 2nd equation...

    Y1 = X1 + X2 and Y2 = X1/X2.

    Then 2nd equation implied that X1 = Y2X2.

    Plug that into first equation to get

    Y1 = Y2X2 + X2 = X2(Y2+1) i.e. X2 = Y1/(Y2+1)

    You know that X1 = Y2X2 =...
  7. I can't speak to CA field specifically but...2-3...

    Hello. I'm 40 and in the midst of a career change. B.A. in Stats from Berkeley (1998). Since then I've been a s/w eng and recently a professional online poker player.

    I've read horror stories...
  8. Reading this thread may help:...

    Reading this thread may help: http://www.actuarialoutpost.com/actuarial_discussion_forum/showthread.php?t=257082&highlight=convolution
  9. Write out the stream of payments, use geometric...

    I know the formula is P((1+r)^n-(1+g)^n)/(r-g). But what happens when n goes to infinity? Do they cancel out and become just P/(r-g)? Thanks.

    Write out the stream of payments, use geometric sums,...
  10. Replies
    3
    Views
    4,449

    Yes and that rule is called "geometric sum".

    in the second line it says sum of (1/5)^k * p0 = p0 / 1-(1/5). Is this a general rule?

    Yes and that rule is called "geometric sum".
  11. Replies
    3
    Views
    2,306

    You will find some good discussions (as well as...

    You will find some good discussions (as well as sources) here: http://www.actuarialoutpost.com/actuarial_discussion_forum/forumdisplay.php?f=13
  12. Replies
    1
    Views
    3,711

    They do from time to time. I'm not sure what you...

    Do mixed random variables show up on exam p frequently.
    I can't seem to wrap my head around it.

    How can a variable be both?

    They do from time to time. I'm not sure what you mean by how? I can...
  13. It shouldn't be. Have you tried to register?

    Does any one know if receiving VEE credits is prerequisite of regstration for CAS 3L? Thank you!

    It shouldn't be. Have you tried to register?
  14. Replies
    2
    Views
    3,111

    Is the answer \sqrt{\pi}/4? If so you might have...

    I would appreciate if anyone could help with this question. It is from Probability and Statistics with Applications: A Problem Solving Text Asimow and Mawell
    8-3
    Suppose that the random variable X...
  15. Replies
    2
    Views
    2,724

    You would use a financial calculator or numerical...

    To illustrate with an example:



    Based upon the above:



    How can rearrange for r=?
  16. Replies
    9
    Views
    7,750

    1) See, now you're being insulting. 2) And...

    I'm pretty sure, you're a sad dimwit, who thinks can bully people in the chat room.Get something else to do if you're bored.I have over the time watched how you displayed your nonchalant...
  17. Replies
    9
    Views
    7,750

    1) I am not a moderator nor did I ever claim to...

    Hey, even if you're the moderator, you have no control over my postings. You're too arrogant for nothing.Get real, my friend.

    1) I am not a moderator nor did I ever claim to control your...
  18. Replies
    9
    Views
    7,750

    What was wrong with his language? He didn't curse...

    Hey, you need to watch you language,you're not obliged to respond to a question posted in this room.You got common sense,right, and you got skill. Absolute bunkum.

    What was wrong with his...
  19. Thread: Hello!

    by NoMoreExams
    Replies
    1
    Views
    1,491

    You should explore this site for awhile:...

    You should explore this site for awhile: http://beanactuary.org/

    As far as recommendations by other users, read through the exam specific sub-forums on here and AO. Most questions you could come...
  20. Replies
    5
    Views
    4,888

    Having a low GPA will hurt you, no doubt about...

    Thanks for your reply. I'm more concerned about my GPA limiting my job opportunities than getting into a grad school. Mostly because of the money, I've decided to not go to grad school for now, and...
  21. Replies
    4
    Views
    2,797

    I don't see a solution so I can't answer why "we"...

    I'm asking, why are we using conditional statement in the solution? or please help me with the solution then I can ask my questions. Thanks.

    I don't see a solution so I can't answer why "we" are...
  22. Replies
    4
    Views
    2,797

    Are you asking on how to do these or just...

    Are you asking on how to do these or just commenting?
  23. Replies
    4
    Views
    3,884

    Dr. Weishaus doesn't publish a text recommended...

    My suggestion is the MFE text by Abraham Weishaus. I'm not aware of any recent changes to the syllabus, but most likely he still keeps the material up to date.

    Dr. Weishaus doesn't publish a text...
  24. Replies
    2
    Views
    2,069

    So pick a value, let's say P(person purchases...

    Hi Guys,
    I sometimes misinterpret questions, what can I do help me improve?
    For instance in the question below:

    Q:An actuary studying the insurance preferences of automobile owners makes
    the...
  25. Replies
    2
    Views
    2,336

    Are you confusing P(A|B) vs. P(A n B)?

    Hi everyone.
    Problem 9.13
    A study of drinking and driving has found that 40% of all fatal auto accidents
    are attributed to drunk drivers, 1% of all auto accidents are fatal, and drunk
    drivers are...
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