2 Sampling

Question 1

Random sampling

Answer 1

Members of the population are numbered, then can be selected randomly using a random number generator, dice, cards, etc.
- each member of the population has an equal chance of being in the sample

Question 2

Systematic sampling

Answer 2

Members of the population are numbered, then are selected at regular intervals
e.g. every 10th or 20th item
- good method for quality control on production lines in factories