Re: prob & stats ques

Posted by duck on May 07, 2013; 11:45am
URL: http://discussion-forum.276.s1.nabble.com/prob-stats-ques-tp7580413p7580454.html

The question is saying that X1 and X2 are two random variables and you draw one observation from X1 (say x1) and another from X2 (say x2). Now, you need to find the expectation of number of observations in the sample(which is (x1,x2) , it has only two values)) within a specified interval [a,b].

eg: you have drawn one sample as (2,3) and another sample as (3,5). Let [a,b]=[1,3] . Now, sample (2,3) has both observations lying in the interval and sample (3,5) has only one observation (3) lying in the interval.