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THE NEXT QUESTIONS ARE BASED ON THE FOLLOWING INFORMATION:
Chebyshev's theorem is used to approximate the proportion of observations for any data set,regardless of the shape of the distribution.Assume that a distribution has a mean of 255 and standard deviation of 20.
-Approximately what proportion of the observations is between 195 and 315?
Case Studies
Research method involving the detailed examination of an individual or group to explore the causes of underlying principles or phenomena.
Interviewers
Individuals who ask questions and gather information from respondents in research, surveys, or for job selection processes.
Dependent Variable
In an experiment or study, the variable being tested and measured, which is expected to change in response to the independent variable.
Confounding Variable
An external variable that can cause a false association between the variables being studied, potentially leading to incorrect conclusions.
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