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Rifles, Reloading, Optics, Equipment
Reloading
? on ES / SD
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<blockquote data-quote="getsmart" data-source="post: 210132" data-attributes="member: 3501"><p>OK, I will jump into this one. </p><p></p><p>My rough understanding of standard deviation is how close your data points cluster around the mean (average). Small SD most data are close to the average; large SD most data are further from the average.</p><p></p><p>I do not really look at SD, but this thread made me think about it some more (always a good thing). I guess now I have something else to fret over. My .300 Wby shoots 210 SMK at 2975 fps average with an ES of 27. A small SD could tell me my average velocity was a good to plug in a ballistics program. A large SD would tell me to beware. Looking at the data set would likely tell me the same thing, I think.</p><p></p><p>Is there anything else a small SD can tell you?</p><p></p><p>eric</p></blockquote><p></p>
[QUOTE="getsmart, post: 210132, member: 3501"] OK, I will jump into this one. My rough understanding of standard deviation is how close your data points cluster around the mean (average). Small SD most data are close to the average; large SD most data are further from the average. I do not really look at SD, but this thread made me think about it some more (always a good thing). I guess now I have something else to fret over. My .300 Wby shoots 210 SMK at 2975 fps average with an ES of 27. A small SD could tell me my average velocity was a good to plug in a ballistics program. A large SD would tell me to beware. Looking at the data set would likely tell me the same thing, I think. Is there anything else a small SD can tell you? eric [/QUOTE]
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