Question 1209505: What is the equation to solve sample standard deviation
Found 2 solutions by ikleyn, math_tutor2020:
Answer by ikleyn(52915)   (Show Source):
You can put this solution on YOUR website! .
For "standard deviation" and for "Sample standard deviation"
(they are two different notions/conceptions) read in this source
https://www.calculator.net/standard-deviation-calculator.html
https://www.calculator.net/standard-deviation-calculator.html
It is written there in a short, clear and comprehensive form.
It is also written in any textbook on Probability and/or Statistics,
so it is even strange to me that somebody comes with the question, to which they
should know the answer as a pre-requisite, from authoritative sources, without my help.
It is the same as to come to me and ask "what is the equation for 2 x 2 ?"
Or, may be, you do not trust to your textbook ?
Or, may be, you expect that I will re-write page after page from a textbook
for you to satisfy your curiosity ?
Or, may be, you are in process of creating your own textbook,
collecting pieces from volunteer tutors from various web-sites ?
One can see all sorts of things at this forum . . .
Answer by math_tutor2020(3817)  (Show Source):
You can put this solution on YOUR website!
Refer to part (d) of this question 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 STDEV command 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 this article
There are many other options.
|
|
|
