Sampling

Question 1

Sampling

Answer 1

A smaller number of the population that is representative so the target population

Question 2

Opportunity sampling

Answer 2

When you simply approach anyone who happens to be available, for example asking people on the street or friends in your college
- it is the most common method as it is more efficient
- it is not representative

Question 3

Random sampling

Answer 3

Where every member of the population has an equal chance of being selected. The easiest way to do this is to place all the name from a target population into a hat and randomly draw out the required sample.
- avoids a bias selection
- it is not representative

Question 4

Systematic sampling

Answer 4

Lining all your ‘colours’ in order and taking every ‘3rd’ one

Question 5

Stratified sampling

Answer 5

Where subgroups within the data are identified and participants are randomly selected from these subgroups in a proportion that arches the target population
- time consuming
- less bias
- easy to generalise
- it is representative