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Author Topic : Stat Deviant...by hand
 Tranquility Acres West
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4/6/2018 4:11:54 PM reply with quote send message to Tranquility Acres West Object to Post   

I am no math whiz by any means...and in tallying up the stat deviant, to me, should be fairly simple. Take your highest number in a section and subtract the lowest number. But then what after you have the 3 numbers together?? That's when I fall back to being that awkward teen in algebra. Any help is appreciated as all the calcs for this are gone. Id like to know/work on my stat deviants. Thank you.
 GaylanStudio
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4/6/2018 9:45:20 PM reply with quote send message to GaylanStudio Object to Post

this post has been edited 1 time(s)

Standard deviation is a statistics calculation involving taking the square root of each number in the set and then doing some more stuff. I think it would be extremely tedious to do it manually. You can find the calculation through a Google search and try.

If you have a spreadsheet application (Excel) there are functions within it to do the work, which is what I use.

Standard Deviation Article if you want to try:

https://www.khanacademy.org/math/probability/data-distributions-a1/summarizing-spread-distributions/a/calculating-standard-deviation-step-by-step

If you have a horse or two you want the numbers for I don't mind doing a few for you. My spreadsheet was developed many years ago when the other one-line calculator was available - but it's not that slick - and it duplicates the numbers.

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Last edited by GaylanStudio on 4/6/2018 9:49:41 PM
 GaylanStudio
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4/6/2018 9:58:14 PM reply with quote send message to GaylanStudio Object to Post

Just found this! It's a calculator!

I'm not sure if it is exactly the same calculation (there are at least two) but it gave me a number pretty close to what I have so it may be useful but still a bit tedious to enter the numbers in.

www.calculator.net/standard-deviation-calculator.html?numberinputs=96%2C90%2C85%2C103%2C93%2C97%2C88%2C98%2C77%2C88%2C85%2C83%2C92%2C79%2C84%2C95%2C71%2C92&x=66&y=21
 Tranquility Acres
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4/7/2018 4:39:23 PM reply with quote send message to Tranquility Acres Object to Post

Thanks Gaylan good enough lol
 Gaylan Training Center
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4/8/2018 1:52:13 PM reply with quote send message to Gaylan Training Center Object to Post

this post has been edited 2 time(s)

We need one that does the "population" version.

The difference - a "Sample" assumes there are more values but you are taking a sample of them, not all. The "Population" version assumes you have all the data for the entire group, presumably more accurate.

Happy if this helps you all.

Data: 96,90,85,103,93,97,88,98,77,88,85,83,92,79,84,95,71,92

Sample Standard Deviation, s 8.124038404636
Variance (Sample Standard), s2 66
Population Standard Deviation - This One 7.895146188218
Variance (Population Standard), s2 62.333333333333
Total Numbers, N 18
Sum: 1596
Mean (Average): 88.666666666667
Standard Error of the Mean (SEx¯wink ;): 1.9148542155127

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Last edited by Gaylan Training Center on 4/8/2018 2:02:08 PM

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Last edited by Gaylan Training Center on 4/8/2018 2:03:37 PM
 Tranquility Acres West
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4/11/2018 2:30:43 PM reply with quote send message to Tranquility Acres West Object to Post

Oh that one that's even better lol I had better sd than i had originally thought. Thanks Gaylan!

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