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Rifles, Reloading, Optics, Equipment
Reloading
Can SD and ES be a shortcut for accuracy
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<blockquote data-quote="bedrok" data-source="post: 1751547" data-attributes="member: 25202"><p> <ul> <li data-xf-list-type="ul">1. Work out the <a href="https://www.mathsisfun.com/mean.html" target="_blank">Mean</a> (the simple average of the numbers)</li> </ul> <ul> <li data-xf-list-type="ul">2. Then for each number: subtract the Mean and square the result</li> </ul> <ul> <li data-xf-list-type="ul">3. Then work out the mean of <strong>those</strong> squared differences.</li> </ul> <ul> <li data-xf-list-type="ul">4. Take the square root of that and we are done!</li> </ul> <ul> <li data-xf-list-type="ul">THATS the formula for SD. A little more to it than averaging.</li> </ul> <ul> <li data-xf-list-type="ul">That's why I said I'm too dumb to calculate it</li> </ul></blockquote><p></p>
[QUOTE="bedrok, post: 1751547, member: 25202"] [LIST][*]1. Work out the [URL='https://www.mathsisfun.com/mean.html']Mean[/URL] (the simple average of the numbers)[/LIST] [LIST][*]2. Then for each number: subtract the Mean and square the result[/LIST] [LIST][*]3. Then work out the mean of [B]those[/B] squared differences.[/LIST] [LIST][*]4. Take the square root of that and we are done![/LIST] [LIST][*]THATS the formula for SD. A little more to it than averaging.[/LIST] [LIST][*]That’s why I said I’m too dumb to calculate it[/LIST] [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Can SD and ES be a shortcut for accuracy
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