- CFA Exams
- CFA Level I Exam
- Topic 1. Quantitative Methods
- Learning Module 7. Estimation and Inference
- Subject 1. Sampling Methods
CFA Practice Question
Which of the following is (are) NOT true of simple random sampling?
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.
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! |