Unit 3: Sampling Methods

Question 1

Simple Random Sample (SRS)

Answer 1

every individual has an equal chance of being chosen

Question 2

Stratified random sample

Answer 2

population is divided into strata (homogenous groups) and then simple random sample is used on each stratum

Question 3

cluster random sample

Answer 3

randomly pick a location and sample all from that location OR randomly select a person from an ideally heterogenous group and sample everyone in that group

Question 4

systematic random sample

Answer 4

randomly select a number between one and n and survey every nth person after that

Question 5

multistage sample

Answer 5

a combination of different sampling techniques