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3. A pollster walks around a busy shopping mall and asks people passing by how often they shop at the mall. What kind of sampling does this represent?Simple random samplingConvenience samplingSystematic samplingStratified samplingCluster sampling

3. A pollster walks around a busy shopping mall and asks people passing by how often they shop at the mall. What kind of sampling does this represent?Simple ran class=

Answer :

The definition of convenience sampling is:

Then, each element in the population has a known nonzero chance of being selected, a random selection procedure is used. Taking into account that the pollster just walks around asking people randomly, this is a convenience sampling.

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