To give a brief background
in my college math course on probability and statistics, the professor just finished going over Markov's inequality, Chebychev's inequality, and the Weak law of large numbers.
I tried to figure this problem out for hours, but couldn't understand it. It is for a homework that has already been turned in (ie, this is not for a grade), but I desperately want to know the answer + explanation.
the problem is in the attachment
Any help will be much appreciated!