Hi Mr Fantastic,
I have just realised I left out part of my question , which provides me with a road to go down, but I am really lost so I found that none of the proofs on google really helped me out.
The question should have been:
by first showing thatProve Chebyshev's inequality, which states that if is a random variable with expectation and finite variance , show that , for any
Its this last part that I carelessly left out that has me stumped.