Question: how to calculate sample standard deviation on ba ii plus?
Answer: press 2nd, 7 (Data) press 2nd CE/C to clear the worksheet. enter data into the X fields (X01, X02, etc.). ...  press the down arrow twice, then type the second observation and press Enter. ...  press 2nd, 8 (Stat) press 2nd, Set. ...  press the down arrow repeatedly to display statistics one at a time.