Q10 · 2022 · Technology-freeSimple familiar1 mark
QUESTION 10
A survey plans to draw conclusions based on a random sample of 1% of Queensland’s adult population. To be regarded as a random sample, every
(A)
adult in the population will be placed in an alphabetical list and every 100th person will be selected for the sample.
(B)
adult in the population can choose to participate until the sample size has been reached.
(C)
subgroup within the population will be represented in a similar proportion in the sample.
(D)
adult in the population will have an equal chance of being selected for the sample.
WORKED SOLUTION
1 markAnswer D
ANSWER
D — adult in the population will have an equal chance of being selected for the sample.
Worked solution
For a simple random sample, each member of the population must have an equal chance of being selected. Therefore D.
Selects option D.
Worked explanation by QCE Vault; correct option verified against the QCAA answer key.
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