Methods of sampling Quiz
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5 questions, one answer each
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1. A population of 1200 students is listed in a register and a systematic sample of 80 is needed. What is the sampling interval?
- A.
- B.
- C.
- D.
2. Which method needs no sampling frame?
- A. Simple random sampling
- B. Systematic sampling
- C. Quota sampling
- D. Stratified sampling
3. A school has 300 pupils in Year 12 and 200 in Year 13. A stratified sample of 50 is taken. How many Year 13 pupils are sampled?
- A.
- B.
- C.
- D.
4. Why is a census unsuitable for testing how long batteries last?
- A. It is always less accurate
- B. Testing destroys the batteries
- C. The population is too small
- D. It cannot be done with a sampling frame
5. Which is a disadvantage of systematic sampling?
- A. It cannot include the last unit
- B. It needs a random number for every unit
- C. A regular pattern in the list can cause bias
- D. It cannot be used for large populations