Sampling

Question 1

Types of Sampling

Answer 1

Random, Stratified, Systematic, Cluster, Multistage and Quota

Question 2

Random Sampling

Answer 2

Items are picked at random until sample is complete

Question 3

Stratified Sampling

Answer 3

Sampling frame is divided into non-overlapping groups or strata (area, age, gender). A random sample is taken from each strata

Question 4

Systematic Sampling

Answer 4

Every nth item in the sampling frame is taken for the sample

Question 5

Cluster Sampling

Answer 5

Divides population into groups, number of clusters are selected randomly to represent the population then all units within the selected clusters are included in the sample.

Question 6

Multistage Sampling

Answer 6

Involving selecting a sample within each chosen cluster rather than including all units in the cluster. Thus multistage sampling involves selecting a sample in at least two stages

Question 7

Quota Sampling

Answer 7

Separating a population into sub-group, individuals are then chosen by the interviewer rather than selected at random or systematically