Life’s Little Mysteries
How Is Crowd Size Estimated? by Remy Melina, Staff Writer
Published: 03 September 2010 Time: 03:33 PM ET
“Reports of the number of people that attended Glenn Beck’s Aug. 28 rally have varied wildly –from 78,000 to 800,000 people. How is crowd size estimated – and who does the counting?” – Melina
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