Lesson 2.01c

2.01c Sampling techniques: Sampling techniques (2.01c) Quiz: OCR Maths, Unit 11

20 questions

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Lesson 2.01c, Sampling techniques: Sampling techniques (2.01c): 20 multiple choice questions for the OCR Maths (H240), Unit 11: Statistical Sampling, written with Revision Ninja.

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The 20 questions

  1. What type of sampling selects every kth item from an ordered population list?

    • Systematic sampling
    • Quota sampling
    • Simple random sampling
    • Cluster sampling
  2. Which sampling technique selects participants based on who is available at the time?

    • Systematic sampling
    • Simple random sampling
    • Stratified sampling
    • Opportunity sampling
  3. What sampling method divides the population into mutually exclusive groups and samples randomly from each?

    • Opportunity sampling
    • Cluster sampling
    • Quota sampling
    • Stratified sampling
  4. Which sampling method divides a population into groups, then tests every item in selected groups?

    • Stratified sampling
    • Systematic sampling
    • Quota sampling
    • Cluster sampling
  5. Which non-random sampling method selects participants to fit specific predefined category targets?

    • Opportunity sampling
    • Quota sampling
    • Stratified sampling
    • Cluster sampling
  6. What is the term for a complete list of all members in a target population?

    • Sampling unit
    • Sampling frame
    • Population parameter
    • Sample statistic
  7. Why might two different simple random samples from the same population produce different sample means?

    • Incorrect frame
    • Systematic bias
    • Natural variation
    • Calculation error
  8. A researcher surveys the first 20 shoppers who enter a store. Which technique is used?

    • Quota sampling
    • Simple random sampling
    • Opportunity sampling
    • Systematic sampling
  9. A school has 600 boys and 400 girls. In a stratified sample of 50, how many boys?

    • 30
    • 25
    • 20
    • 35
  10. A manager selects every tenth product off an assembly line following a random start. Name this method.

    • Systematic sampling
    • Quota sampling
    • Simple random sampling
    • Cluster sampling
  11. A town is split into ten wards, and three whole wards are randomly chosen for surveying. Name this method.

    • Cluster sampling
    • Systematic sampling
    • Stratified sampling
    • Quota sampling
  12. An interviewer is instructed to stop after surveying exactly 15 men and 15 women. Name this technique.

    • Systematic sampling
    • Stratified sampling
    • Quota sampling
    • Opportunity sampling
  13. Each student is given a number, and a computer selects 20 random numbers. Name this sampling method.

    • Opportunity sampling
    • Quota sampling
    • Systematic sampling
    • Simple random sampling
  14. When taking a random sample without replacement from a large population, each selection is treated as what?

    • Bivariate
    • Dependent
    • Mutually exclusive
    • Independent
  15. What is an individual member of a population called when creating a sample list?

    • Sampling frame
    • Statistic
    • Sampling unit
    • Population parameter
  16. What is a major disadvantage of opportunity sampling compared to simple random sampling?

    • High bias risk
    • Requires sampling frame
    • Complex setup
    • High cost
  17. Which of these sampling techniques does not require a pre-existing sampling frame?

    • Stratified sampling
    • Systematic sampling
    • Simple random sampling
    • Quota sampling
  18. In stratified sampling, how must the categories or strata be related to one another?

    • Positively correlated
    • Equal in size
    • Independent
    • Mutually exclusive
  19. Why is cluster sampling often preferred over simple random sampling for nation-wide geographical surveys?

    • Lower cost
    • Smaller sample size
    • Zero bias
    • Higher accuracy
  20. A population has 80 adults and 120 children. A stratified sample of 10 should contain how many children?

    • 6
    • 5
    • 4
    • 8

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