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i think to check your product satisfactions without any arrangement, like if you sitting Public place and hear from any one their about your product without knowing that you work at the same company produce this product
An approach to gathering data that uses a readily available sample group, such as all consumers who visit a store on a given day. In convenience sampling, no attempt is made to use a random sample or a sample that represents a specific subset of the population. Statisticians have a low opinion of convenience sampling
