Originally Posted by

**johnj77** Hello,

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!