Sorry if this is a repost, but I could not find the answer by searching. I just got my TI BA (regular edition) and the one thing I cant figure out is how to do simple standard deviation (or the other simple stats functions). I keep getting an error 4 message (too many numbers or something). I am imputing a simple table of probability and return % for ex: .30 =25% .30=5% .40 = -5% and I cant seem to get it to work. Sorry if this is a stupid question. (I am using the 1 variable mode).