I am going through the Schweser for FRM Part 1.
They describe the central moments in terms of the expected value operator, however do not provide a formula for computing skew or kurtosis.
Should I know how to compute it? Or is it only necessay to understand how they affect the distribution of the data?
IMO, you do not need to know how to calculate, but need to know their (skewness&kurtosis) implications such as +/- skewness and kurtosis more/less than 3.
Hope that helps 
That does! Thanks! Very surprising though…
Similarly for the Level I CFA exam. I wrote a couple of articles on these:
^ Thank you
My pleasure.