## Related questions with answers

A professor teaching a large lecture class of 350 students samples her class by rolling a die. Then, starting with the row number on the die (1 to 6), she passes out a survey to every fourth row of the large lecture hall. She says that this is a Simple Random Sample because everyone had an equal opportunity to sit in any seat and because she randomized the choice of rows. What do you think? Be specific.

Solution

VerifiedSimple random sampling uses a sample of size $n$ in which every sample of size $n$ has an equal chance of being chosen.

The mentioned sample of choosing every fourth row to be in the sample is then not a simple random sample, because it is for example not possible to select the first five rows to be in the sample and thus each sample does not have the same chance of being chosen.

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