How many were there when it mattered?

Estimating the sizes of crowds

  1. Ray Watson1,
  2. Paul Yip2

Article first published online: 25 AUG 2011

DOI: 10.1111/j.1740-9713.2011.00502.x

Issue

Significance

Significance

Volume 8, Issue 3, pages 104–107, September 2011

Additional Information

How to Cite

Watson, R. and Yip, P. (2011), How many were there when it mattered?. Significance, 8: 104–107. doi: 10.1111/j.1740-9713.2011.00502.x

Author Information

  1. 1

    Associate Professor in the Department of Mathematics and Statistics at Melbourne University.

  2. 2

    Professor in the Department of Social Work and Social Administration at the University of Hong Kong.

Publication History

  1. Issue published online: 25 AUG 2011
  2. Article first published online: 25 AUG 2011

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150 000 people demonstrated in Hong Kong. 10 000 students protested in London against tuition fees. A million people lined the streets for the Royal wedding. Or did they? Do not believe what you are told, say Ray Watson and Paul Yip. Estimating the size of a crowd is a difficult business – even for those who actually want to get it right.

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