Re: ISI 2014 PEA Answer Key

Posted by Ridhika on May 10, 2014; 3:30am
URL: http://discussion-forum.276.s1.nabble.com/ISI-2014-PEA-Answer-Key-tp7587867p7589255.html

Thanks a lot vaibhav ! :) and good luck for the exam tomorrow!

----- Reply message -----
From: "Vaibhav Garg [via Discussion forum]" <ml-node+[hidden email]>
To: "Ridhika" <[hidden email]>
Subject: ISI 2014 PEA Answer Key
Date: Fri, May 9, 2014 7:30 PM

Ridhika....in q11...fx is PDF...therefore total area under fx should be sum to 1
So when u integratee it...ie x from 0 to a and 1/2 from a to 2 their sum should be equal to 1
You'll get a=0,1 now a cannot be 0 as prob with x<=a is positive and rv is b/w 0 and 2 only..therefore a is 1
Now Prob(X>=1) = integration ½ from 1 to 2...

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