Time management is very much important in IIT JAM. The eduncle test series for IIT JAM Mathematical Statistics helped me a lot in this portion. I am very thankful to the test series I bought from eduncle.
Nilanjan Bhowmick AIR 3, CSIR NET (Earth Science)
Prashant kumar
Answer
The answer is not 2..
Sorry Actually this is wrong approach I am very very sorry for this . the correct solution is attached