For example, if you're surveying customers ... sampling when you need a simple and efficient method to select a representative sample from a large population with a known and evenly distributed ...

To be representative of the whole leaf, the representative sample must: include a sufficient number of counts - not just one or two - of stomata over different parts of the slide must be random ...

We therefore take a representative sample, which is a smaller number of ... to count all the organisms in a population. For example: animals may move into - or out of - an area during counting ...