Section 1.2 Random Samples

Question 1

Simulation

Answer 1

A way to model random events that closely match real world outcomes

Question 2

Stratified

Systematic

Answer 2

Str:Dividing the population into distinctive subgroups and drawing random samples from each subgroup
Sys: Sequentially numbering and randomly selected starting point taking every nth member

Question 3

Cluster
Multistage
Convenience

Answer 3

Clu:Divided population into subgroups based on geographical location
M:Creating smaller groups using various sampling methods
Con:Using available data from the population to make a sample

Question 4

Sampling frame

Under coverage

Sampling error

Answer 4

List of members from which a sample is actually selected

When part of the population is omitted into the selection.

The difference between measurement from the sample and corresponding measurement from the respective population

Question 5

Simple random sample

Answer 5

A sample in which every individual in the population has an equal chance of being selected