How to Find Standard Deviation on Calculator?

To find the standard deviation on a calculator (specifically referencing the TI-84 based on the provided video clip), you generally use the one-variable statistics function.

Here's how to access it:

1. Enter your Data: The video clip doesn't cover data entry, but you'd typically enter your data into a list (e.g., L1) by pressing STAT, then EDIT, and then inputting the numbers in the list.

2. Access the Calculation Menu: Press the STAT button again.

3. Select Calculate: Navigate to the CALC menu using the right arrow key.

4. Choose One-Variable Statistics: Select 1: 1-Var Stats and press ENTER.

5. Specify the List (if necessary): If your data is in a specific list (e.g., L1), you might need to tell the calculator which list to use. On some calculators, this involves entering L1 (accessed by pressing 2nd and then the 1 key). If you're prompted for a frequency list, leave it blank or use '1' if necessary.

6. Calculate: Press ENTER to calculate the statistics.

7. Find Standard Deviation: The calculator will display various statistics, including:

   • σx (sigma x): This represents the population standard deviation.
   • sx (s x): This represents the sample standard deviation.

Choose the appropriate standard deviation (population or sample) based on your data and the problem you're trying to solve.