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Long Range Hunting & Shooting
ES and SD
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<blockquote data-quote="Chippewa" data-source="post: 1434358" data-attributes="member: 86093"><p>Found this... If you feel likemaking your old math teachers proud!</p><p></p><p>[ATTACH=full]96648[/ATTACH]</p><p></p><p>To calculate the Standard Deviation of those numbers:</p><p></p><p>Work out the Mean (the simple average of the numbers)</p><p>Then for each number: subtract the Mean and square the result.</p><p>Then work out the mean of those squared differences.</p><p>Take the square root of that and we are done!</p></blockquote><p></p>
[QUOTE="Chippewa, post: 1434358, member: 86093"] Found this... If you feel likemaking your old math teachers proud! [ATTACH=full]96648[/ATTACH] To calculate the Standard Deviation of those numbers: Work out the Mean (the simple average of the numbers) Then for each number: subtract the Mean and square the result. Then work out the mean of those squared differences. Take the square root of that and we are done! [/QUOTE]
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