How Do You Find The Standard Deviation On A Multiview Ti-30xs Calculator

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How do I calculate Standard Deviation on the TI-30X IIS/B, TI-30XS MultiView and TI-34 II Explorer Plus?

The example below will demonstrate how to input and calculate standard deviation on the TI-30X IIS/B, TI-30XS MultiView or TI-34 II Explorer Plus.

For TI-30X IIS/B and TI-34 II Explorer Plus users:

Example: Enter the following x variables, and determine the sample and population standard deviations.

x = {1,2,3}

• Press [2nd], [STAT], and then choose 1-VAR.
• Press [DATA] and begin to enter the data as indicated. To input a data point, type the value and press [ENTER]. Press the down arrow key to move on to the next data point. Data points alternate between the x value, and the x frequency.
• [STATVAR] displays the menu of variables with their current values.
  
  Answers should be as follows:
  Sx (Sample Standard Deviation) = 1
  sx (Population Standard Deviation) = 0.816497

• Press [2nd] and [EXIT STAT], select Y and press [ENTER] to exit STAT mode.

For TI-30XS MultiView users:

Example: Enter the following x variables, and determine the sample and population standard deviations.

x = {1,2,3}

• Press [DATA] and begin to enter the data as indicated into the L1, L2 or L3 lists. To input a data point, type the value and press [ENTER]. Press the down arrow key to move on to the next data point.
• Press [2nd], [STAT], and then choose 1-VAR.
• For the "DATA" option, choose the listname the data is stored in (L1, L2 or L3). For the "FRQ" option, choose "ONE" since this data does not include a frequency list.
• Arrow down to "CALC" and press [ENTER].
  
  Answers should be as follows:
  3:Sx (Sample Standard Deviation) = 1
  4:sx (Population Standard Deviation) = 0.816497

• Press [2nd] [MODE] to exit STAT mode.

Please see the TI-30X IIS/B, TI-30XS MultiView and TI-34 II Explorer Plus guidebooks for additional information.