CFA Practice Question

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CFA Practice Question

Which of the following is (are) NOT true of simple random sampling?

I. Whether or not a sample is random cannot be told from inspection of the sample.
II. Characteristics of a random sample may differ widely from characteristics of the population from which it is drawn.
III. A sample must be reasonably large to be considered a random sample.
IV. Every element in the population must be given an equal chance for inclusion in the sample.
Correct Answer: III

User Contributed Comments 4

User Comment
surob I thought the size of the sample matters from the randomness standpoint. Any thoughts?
tabulator Randomness and size are not related. Randomness is the way you choose from the sample of any size.
bahodir It is wrong because the statement should be "A sample must be reasonably large to be considered an unbiased sample"
Gooner7 unbiased..thanks bahodir!
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