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1.
PRF is based on population data as a whole,
SRF is based on Sample data
2.
We can draw only one PRF line from a given population.
But we can Draw one SRF for one sample from that population.
3. PRF may exist only in our conception and imagination.
4.
PRF curve or line is the locus of the conditional mean/ expectation of the independent variable Y for the fixed variable X in a sample data.
SRF shows the estimated relation between dependent variable Y and explanatory variable X in a sample.
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36
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What is the difference between random sampling and random assignment?
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How do scientist calculate if a gene pool has changed?
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What is a sample of an investigatory project related to biology?
Investigate what kills ants. Example: Using spices vs. brand name poison to kill them.
What does unspecialised?
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What does the slope of a tangent to the curve of a velocity-time graph measure?
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