Define PRE. What role does it play in statistics? How is it important?
What will be an ideal response?
PRE stands for Proportionate Reduction of Error. PRE measures tell us the proportion of errors that are eliminated in predicting values on the dependent variable by knowing values on the independent variable. These measures are important because they provide a statistic assessing the strength of an association between variables.
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The death of a spouse is usually regarded as the most difficult of all deaths
Indicate whether the statement is true or false.
The major reason why most corporations dump their wastes onto the land and into the air and water is because they
a) see all the other corporations doing the same thing. b) do not believe that their wastes actually harm the land. c) have little commitment to the environment. d) find it too costly to develop ecologically safer alternatives.
The queen of England's power is legitimate because it is based on what kind of authority?
A. traditional authority B. charismatic authority C. unquestionable authority D. regal authority
According to disengagement theory, social disengagement generally begins when the last of the dependent children leave home and increases when retirement is more seriously considered
Indicate whether the statement is true or false