Re: ISI INTERVIEW PREP

Posted by Saish on Jul 04, 2012; 4:45pm
URL: http://discussion-forum.276.s1.nabble.com/ISI-INTERVIEW-PREP-tp7578819p7579041.html

I'm not getting the pdf you are...
Pls.correct me wherever I'm wrong...
See the way I'm thinking is that the probability of z being the second highest number is the probability of   n-2 numbers being smaller than z and one greater than z
So the pdf = (n-1)[(x/a)^(n-2)]*[(a-x)/a]
... the (n-1) term has come as there are n-1 different numbers that can be greater than z...
There difference in your pdf and mine is a term (n/a) is missing... which is also the problem with the answer I've got.... could you tell me where the mistake is?