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☆☆☆☆☆Cards in this guide (8)
A convenience sample will usually result in
under coverage
Causation can be proved by using an
experiment.
If every 10th student on a nonalphabetized list of names was chosen from your school to answer a survey this group would be an
random sample.
A way to look at how one set of data is related to another is called
Correlation ~
A relationship between two variables or sets of data is called
Correlation
* * * * *
That is simply not true. Consider the coordinates of a circle. There is obviously a very strong relationship between the x coordinate and the y coordinate. But the correlation is not just small, but 0.
The correlation between two variables is a measure of the linear relationship between them. But there can be non-linear relationships which will not necessarily be reflected by any correlation.
Correlation alone causation
Correlation alone cannot be able to complicate causation.
Which is the following would be a convenience sample
Asking students eating in the cafeteria if they would like to be part of a study
If two sets of data are correlated this means
They are related but one might not be causing the other
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