please see attached word doc for problem, I could not get all the symbols to properly display on the thread.
there are 2 problems, 1st uses the survival function and the second is using de moivre's law. any help would be appreciated
It would be easier for everyone if you just typed your questions rather than attaching them as a word file. That way they can be easily seen and quoted.
If you want to help, it's in your own self-interest to make things as easy as possible for people.
i think i figured it out if anyone can check my work.
μ(4) = -s'(x)/s(x) = .08/.84 = .0952
°e8 = E[T(8)] = ∫ (from 0 to infin) tp8 dt
= ∫ [1-.01(8+t)^2] / [1-.01(8^2)]
= .36 ∫ 1-.64-.16t-.01t^2 dt =
= [.36t-.08t^2-(.01/3)t^3]l (from 0 to 2) *[(.36)]
= (.72-.32-.27)*.36 = .1344