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Morris Brekke

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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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