variance calculation

does anyone know of function/shortcut to calculate variance or std deviation in TI BA II plus pro? I spend 5-7 mins on such problems in exam

Hit 2nd 7, enter all the variables under X01,X02,etc. Hit 2nd 8, and hit the down arrow. Depending on whether you want the population or sample statistic, you’ll see Sx and one right after that Ox. Square that result and you get variance. Keep in mind that this does not work with probability distributions.

omg… that is awsome haha ive been doing the same! Any other bits of info? I cant really think of anything extra I need to learn for the calculator at this moment. (know TVM and CF)