Press the "2nd" key, followed by the "F2" key to enter the "Edit" sub-menu.
Enter your data into the "xStat" column by navigating to the column with the arrow keys and then typing each number followed by the "ENTER" key.
Hit the "EXIT" key to return to the main screen and press the "2nd" key, followed by the "F1" key and then the "F1" key once more to enter the "OneVa" menu.
Strike the "2nd" key once more, followed by the "F3," "F2" and "ENTER" keys to select the "xStat" table as the table to be calculated.
Read the output on the screen to get the sample mean, represented by the variable "x," and the sample standard deviation, represented by the variable "Sx."