Fig. 2From: Simplified binomial estimation of human malaria transmission exposure distributions based on hard classification of where and when mosquitoes are caught: statistical applications with off-the-shelf toolsThe predicted relationship between the number of mosquitoes caught per cluster and the number of village-scale population clusters required to achieve 80% power if all other assumed parameters are exactly as described in Box 2. Note that in the field of epidemiology, the simple term cluster usually refers a geographically distinct, but often demographically defined, unit of observation that may be considered independent in the statistical sense [27]Back to article page