https://demography.subwiki.org/w/index.php?action=history&feed=atom&title=Single_point_in_time 2026-08-10T16:32:38Z Revision history for this page on the wiki MediaWiki 1.41.2 https://demography.subwiki.org/w/index.php?title=Single_point_in_time&diff=121&oldid=prev 2013-11-30T00:37:55Z

<p>Created page with &quot;==Definition== The term &#039;&#039;&#039;single point in time&#039;&#039;&#039; or &#039;&#039;&#039;snapshot&#039;&#039;&#039; is used to refer to situations where we want to calculate measures, or ratios of measures, that involve c...&quot;</p> <p><b>New page</b></p><div>==Definition==<br /> <br /> The term &#039;&#039;&#039;single point in time&#039;&#039;&#039; or &#039;&#039;&#039;snapshot&#039;&#039;&#039; is used to refer to situations where we want to calculate measures, or ratios of measures, that involve counts of entities (typically, counts of living populations and subpopulations) at a &#039;&#039;single point in time&#039;&#039;. We cannot use &#039;&#039;single point in time&#039;&#039; to calculate counts of &#039;&#039;events&#039;&#039;, because events can only be measured in a given measurement period (typically a year).<br /> <br /> ==Ratios that make sense at a single point in time==<br /> <br /> Note that these ratios &#039;&#039;must&#039;&#039; have both their numerator and denominator as measuring counts of entities, typically, subpopulations of a given population.<br /> <br /> Some examples are:<br /> <br /> * [[Age-dependency ratio]]<br /> * [[Child-woman ratio]]<br /> * [[Sex ratio]]</div>

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