put into tech format, added step to clear existing data
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This wikiHow teaches you how to find the standard deviation for list of numbers on a TI84 graphing calculator. After entering your data set, you can use the option to calculate various statistics, including the mean, sum, and both sample and population standard deviations in one step.

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[[Category:Probability and Statistics]]

[[Category:Probability and Statistics]]


[[Category:Graphing Calculators]]

[[Category:Graphing Calculators]]


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== Steps ==

== Steps ==


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#Press the

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#Press the button on your calculator. It's in the third column of keys.

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#

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# Select the menu and press . It's the first option on the menu. You will see columns (lists) labeled L1 through L6.[[Image:Find Standard Deviation on the TI–84 Step 1 Version 2.jpgcenter]]

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#Press the

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#* The TI84 allows you to enter up to six different lists of data sets.

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#Select

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# Clear existing data from the lists. If there's already data in any of the columns, use these steps to remove it before you continue:

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#Press the

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#* Use the arrow keys to navigate to L1 (the first column).

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#

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#* Press .

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#Find the standard deviation value next

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#* Press .

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#* Repeat for other lists with data.

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# Enter your data set into the L1 column. Press the key after each value. [[Image:Find Standard Deviation on the TI–84 Step 2 Version 2.jpgcenter]]


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#Press the button to return to the menu.


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# Press the rightarrow to switch to the tab. It's the second menu tab at the top of the screen. [[Image:Find Standard Deviation on the TI–84 Step 3 Version 2.jpgcenter]]


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# Select and press . [[Image:Find Standard Deviation on the TI–84 Step 4 Version 2.jpgcenter]]


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#Press the button and then to select L1. You'll only need to do this if you have a T184 Plus model and don't already see "L1" next to "List."[[Image:Find Standard Deviation on the TI–84 Step 5 Version 2.jpgcenter]]


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#* If you created multiple lists and want to select a different one, press the number that corresponds with that column.<ref>https://ift.tt/2LoBC99> For example, if you want standard deviation for the values you entered in L4, press the and then .


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#* Some nonplus models may skip this screen and display your results automatically.<ref>https://www.youtube.com/watch?v=_WEbI1JHO4Q</ref>


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# Select and press . The TI84 will now display standard deviation calculations for the set of values.[[Image:Find Standard Deviation on the TI–84 Step 6 Version 2.jpgcenter]]


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# Find the standard deviation value next or . These should be the 4th and 5th results in the list. You may have to scroll down to view both values.<ref>https://ift.tt/2ZtPokx> [[Image:Find Standard Deviation on the TI–84 Step 7 Version 2.jpgcenter]]


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#* shows the standard deviation for the sample.


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#* shows the standard deviation for the population.


== References ==

== References ==


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