Solving for k in conditional normal distribution

  • Context: Undergrad 
  • Thread starter Thread starter bayan
  • Start date Start date
  • Tags Tags
    Inverse Normal
Join the discussion
Registration is free. Ask a follow-up in this thread, or start your own.
3 replies · 3K views
bayan
Messages
202
Reaction score
0
any one know how to solve for [tex]k[/tex] in the following question?

[tex]Pr(X<k|X<23)=0.32[/tex] where [tex]X-N(22,25)[/tex].

I just can't get it.

cheers n thanks in advance.
 
Physics news on Phys.org
P(X<k|X<23) = 1 if k >= 23 why??
if k<23, then
P(X<k|X<23) = P(X<k)/P(X<23) why??

-- AI
 
doesn't work out and they have the answer as 17.525 in book.

any helps
 
What does this notation mean: [itex]X-N(22,25)[/itex] ? Can you express it with words?