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<p>[QUOTE=&quot;physics-fan3.14, post: 3183604, member: 19165&quot;]Survival Estimate: a number, such as 10,000 pieces. This lets you know how many you think may be out there. </p><p><br /></p><p>Survival Rate: a percentage, such as 10%. This lets you know what percentage of the original mintage is still around. </p><p><br /></p><p>Both mean essentially the same thing (you use one to get the other), but they are two different ways of quantifying it. For some, thinking in percentages is easier. It also helps explain some statistics more easily.[/QUOTE]</p><p><br /></p>

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