# Statistics - How to calculate the standard deviation

MySecretMathTutor
Published at : 22 Jan 2021
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This video covers how to find the standard deviation by hand using the formula. Remember there are actually two formulas depending if your data comes from a sample or a population. Even though all of these calculations can be done by hand, a calculator is recommended so that you don't make mistakes.

▬▬ Chapters ▬▬▬▬▬▬▬▬▬▬▬
0:00 Start
0:06 Formulas for calculating standard deviation
0:36 Example, calculating the standard deviation by hand
0:46 Find the value of n
1:05 Find the sum of squares
1:54 Find the sum and then square
2:52 Standard deviation of a sample
3:37 Standard deviation of a population
4:41 Wrap up information and ending

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This video is related to many other topics. Check them out:
Find the variance: https://youtu.be/VgKHjVDK0uM
Using the Ti83 or Ti84: https://youtu.be/vSjs-Vehaf8
Using the Casio fx-9750Gii: https://youtu.be/TR57w69g3bc
Using the Casio fx-115ES Plus: https://youtu.be/zpLABdyepNk

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