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Es and Sd
Posted: Sun Jan 22, 2017 8:55 am
by scott/r
Hey guys, extreme spread I have a handle on. Pretty basic stuff. But sd I'm not up to par with. First off how do you calculate it? Is there a formula to work it out? And what is the main reason for these numbers?
Scott.
Re: Es and Sd
Posted: Sun Jan 22, 2017 9:17 am
by Steve N
Scott you can get an SD calculator app for your phone or pad. A rough calculation can be done by dividing the Es by 4. That's all I know. Stuff I found on Google. Others may have other methods and some explanation.
Steve.
Re: Es and Sd
Posted: Sun Jan 22, 2017 9:52 am
by scott/r
Cool, thanks Steve.
I did a google search and found a calculator that also gives you your percentage forcasts as well. Which is the reason for sd figures, so I just read.
http://www.calculator.net/standard-devi ... lator.html
Re: Es and Sd
Posted: Sun Jan 22, 2017 1:01 pm
by scott/r
What is an acceptable number for 155.5 bergers? I've got a reading of 4.55 from this calculator. Am I in the ballpark?
Re: Es and Sd
Posted: Sun Jan 22, 2017 9:48 pm
by plumbs7
Hi Scott , sounds about right over 10 shots . Regards Graham
Re: Es and Sd
Posted: Mon Jan 23, 2017 4:19 am
by scott/r
Cool, thanks Graham.