Examlex
The ____ are believed to be the first group of hominids that buried their dead.
Voluntary Response Sampling
A sampling method where participants decide for themselves whether to be included in the study, often leading to bias.
Utility Rates
The prices charged for essential public services such as electricity, gas, water, and sewage.
Phone-in Survey
A research method where participants provide their responses or opinions over a phone call, commonly used for collecting data from a wide geographical area.
Multistage Sampling
A complex form of sampling that involves selecting a sample through multiple stages, often used for large and complex populations.
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