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 TI-84 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]]
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[[Category:Probability and Statistics]]
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[[Category:Graphing Calculators]]
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[[Category:Graphing Calculators]]
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== Steps ==
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== 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.jpg|center]]
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#Press the
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#* The TI-84 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.jpg|center]]
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#Press the button to return to the menu.
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# Press the right-arrow 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.jpg|center]]
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# Select and press . [[Image:Find Standard Deviation on the TI–84 Step 4 Version 2.jpg|center]]
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#Press the button and then to select L1. You'll only need to do this if you have a T1-84 Plus model and don't already see "L1" next to "List."[[Image:Find Standard Deviation on the TI–84 Step 5 Version 2.jpg|center]]
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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 non-plus 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 TI-84 will now display standard deviation calculations for the set of values.[[Image:Find Standard Deviation on the TI–84 Step 6 Version 2.jpg|center]]
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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.jpg|center]]
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#* shows the standard deviation for the sample.
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#* shows the standard deviation for the population.
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== References ==
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== References ==
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