Random sampling requires that every member of the target population has an equal chance of being selected. Option B meets this requirement. Option A is systematic sampling and may introduce bias if there is a pattern in the data. Option C is stratified sampling, not random sampling. Option D would introduce selection bias and lead to inaccurate results.

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In a Random Sample

Question 67

Multiple Choice

In a random sample:

A) every tenth person is asked to take part in the study
B) everyone in the target population has an equal likelihood of being selected
C) individuals who take part in a survey are all asked different sets of questions
D) participants with strong opinions are excluded from the survey

Correct Answer: