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
-
What type of sampling selects every kth item from an ordered population list?
- Systematic sampling
- Quota sampling
- Simple random sampling
- Cluster sampling
-
Which sampling technique selects participants based on who is available at the time?
- Systematic sampling
- Simple random sampling
- Stratified sampling
- Opportunity sampling
-
What sampling method divides the population into mutually exclusive groups and samples randomly from each?
- Opportunity sampling
- Cluster sampling
- Quota sampling
- Stratified sampling
-
Which sampling method divides a population into groups, then tests every item in selected groups?
- Stratified sampling
- Systematic sampling
- Quota sampling
- Cluster sampling
-
Which non-random sampling method selects participants to fit specific predefined category targets?
- Opportunity sampling
- Quota sampling
- Stratified sampling
- Cluster sampling
-
What is the term for a complete list of all members in a target population?
- Sampling unit
- Sampling frame
- Population parameter
- Sample statistic
-
Why might two different simple random samples from the same population produce different sample means?
- Incorrect frame
- Systematic bias
- Natural variation
- Calculation error
-
A researcher surveys the first 20 shoppers who enter a store. Which technique is used?
- Quota sampling
- Simple random sampling
- Opportunity sampling
- Systematic sampling
-
A school has 600 boys and 400 girls. In a stratified sample of 50, how many boys?
- 30
- 25
- 20
- 35
-
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
-
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
-
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
-
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
-
When taking a random sample without replacement from a large population, each selection is treated as what?
- Bivariate
- Dependent
- Mutually exclusive
- Independent
-
What is an individual member of a population called when creating a sample list?
- Sampling frame
- Statistic
- Sampling unit
- Population parameter
-
What is a major disadvantage of opportunity sampling compared to simple random sampling?
- High bias risk
- Requires sampling frame
- Complex setup
- High cost
-
Which of these sampling techniques does not require a pre-existing sampling frame?
- Stratified sampling
- Systematic sampling
- Simple random sampling
- Quota sampling
-
In stratified sampling, how must the categories or strata be related to one another?
- Positively correlated
- Equal in size
- Independent
- Mutually exclusive
-
Why is cluster sampling often preferred over simple random sampling for nation-wide geographical surveys?
- Lower cost
- Smaller sample size
- Zero bias
- Higher accuracy
-
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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