Chapter 2
2.24
Although it is mostly accurate, there is always a statistical
margin of error, which can be accounted for in the results.
Some important types include:
•
Simple Random Sample:
Every element or member
of the population has a known and equal chance of
being selected. Imagine a box of lottery tickets, each
representing a person in a city. With a simple ran-
dom sample, each ticket has an equal chance of being
drawn, ensuring fairness.
•
Stratified Random Sample:
This works better in
cases where the population is heterogeneous which
can be divided into different strata. Each stratum rep-
resents a homogeneous group, ...
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