# In Exercises 9–20, identify which of these types of sampling is used: random, systematic, convenience, stratified, or cluster.Exit Polls During the last presidential election, CNN conducted an exit poll in which specific polling stations were randomly selected and all voters were surveyed as they left the premises.

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In Exercises 9–20, identify which of these types of sampling is used: random, systematic, convenience, stratified, or cluster.

Exit Polls During the last presidential election, CNN conducted an exit poll in which specific polling stations were randomly selected and all voters were surveyed as they left the premises.

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Step 1

Systematic sample:

In a systematic sample, starting with a unit selecting at random, every  unit in the sample is selected from the population.

Convenience sampling:

In convenience sampling based on the easy availability of the units, the sample is considered for the study.

Simple random sampling:

In simple random sampling, all the units in the population have the ...

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