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Statistics and Prob.

Statistics and Probability

Probability Measures the likelihood of an event happening.
Theoretical Probability How likely something is "supposed" to happen.
Experimental Probability How likely something "does" happen.
Survey A question or set of questions used to gather data or pieces of information.
Population The group being surveyed.
Sample A smaller group from a population. The sample is supposed to represent the population.
Random Sample A sample in which each individual in the selected population has the same chance of being part of the sample.
Biased Sample A sample in which members of the population have a greater chance of being selected for the sample than other members.
Actual Error The difference between the actual measure/amount and the estimated.
Relative Error The quotient of the actual error and the actual measure/amount, often expressed as a percent.
Created by: teacher4students