How To Calculate Sample Standard Deviation (Step By Step)

This Statistics video goes over how to calculate the sample standard deviation. I walk through how to get the standard deviation through examples. This video is meant to be concise and to the point on how to solve the standard deviation. This also explains how to find the sample standard deviation.

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How to Calculate the Standard Deviation in Excel:

#Statistics #Math

[LearnStats]

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[demitreitler]

I tried working this out on my own for about an hour before I found you. I understand how to do the work and I got it correct so thank

[upsidedownman]

Very clear and helpful. I like the no-nonsense presentation.

[seanjones]

Awesome vid homie, I failed Stats. once in undergrand and passed it the second time with a "C". Now in grad school, you broke down Standard deviation so simple and perfect. Thanks.

[airinvisible]

Well done my friend. Crisp and to the point!!

[melmanuel]

Thank you. I've been looking around and your video is the most helpful one. Straight forward. No nonsense. Thank you.

[powervenaris]

Thank you, I looked at other videos about SAD but those didn't really explain, but you were the one to actually know what you are talking about, thank you very much.

[chrisfritz]

Will never use this again in my life but thank you

[stephenray]

Thanks, I literally forgot what exactly summation was. This sorted that all out thanks!

[Learnstuffsh]

this was super helpful! thank you so much you saved my life with this video I was so confused in class and this literally helped me finish my homework problem!😊

[jadeblade]

Omg I'm trying to do college stats homework and this saved my butt. Thank you so much

[orpadoaa]

Thank youuuu so much, it help me with my reporting. btw I'm from the Philippines. great video ❤

[David-sckf]

this is way too much work. i have 12 sample numbers this is why i hate math.

[Iwillgetrriiich]

hii i want to ask if there are repeating elements do you still have to include both in the process for example

88, 90, 93, 88 were the given does that mean

(88 - x̄)^2 + .... + (88 - x̄)^2 or just one?

[kateoriordan]

Is the final result in P value or Z score or say these were distances, would it be plus or minus 4.397cm?

[thomaswhite]

Hi there, if I calculate the standard deviation on my calculator (using the 1-variable table found in the statistics, putting the four sample numbers into the table) I get the same mean, however the standard deviation comes out to be 3.808... I understand your method and can follow it, but am unsure as to why the calculator comes out with a different value. I do not believe I am inputting the data wrong. Do you know what I might be doing wrong to cause this issue?

[megsbookshelf]

what if my mean comes out to 15.97, and for example my sample numbers are 16.5, 15.6, etc.. do i do 16.5-15.87 or 16.5-15.9 so the decimals are even?

[calebferree]

What do I do when I have 45 sample numbers and not just 5

[gl]

I don't fully understand why when you square a negative it becomes positive.. When doing my practice problems it throws me for a loop.

[bethgreenhalgh]

this may be a dumb question and im 3 years late, but why are you deviding it by 4