Question 1209505
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Refer to part (d) of <a href="https://www.algebra.com/algebra/homework/word/numbers/Numbers_Word_Problems.faq.question.1196832.html">this question</a> to see an example how to calculate the sample standard deviation. 
A spreadsheet is recommended to organize the data and quickly compute things.


In the spreadsheet there is a dedicated <a href="https://support.microsoft.com/en-us/office/stdev-function-51fecaaa-231e-4bbb-9230-33650a72c9b0">STDEV command</a> that will compute the sample standard deviation in one step. 


Alternatively you can search out "sample standard deviation calculator" to bring up many results. 
Some of the web pages may be a simple calculator while others might explain what exactly the calculator is doing behind the scenes.


If you want to use a TI83 or similar, then check out <a href="https://www.mathbootcamps.com/how-to-find-the-standard-deviation-and-variance-with-a-graphing-calculator-ti83-or-ti84/">this article</a>
There are many other options.
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