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)
Priyadarshan Choursiya
here our target is show that Z doesn't have upper bound, so we need to only show that for any real no. k we always find a integer greater than k, that's why Z is not bounded above