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Brett has a headache and needs a pain reliever. He goes to the nearby drugstore, buys some Tylenol, and uses it. Which of the following benefits offered by stores can be seen in the given example?
Test of Independence
A statistical technique that identifies whether there is a meaningful relationship between two variables of categorical type.
Categorical Variable
A variable that represents groups or categories with no intrinsic ranking or order.
Expected by Chance
An outcome or result that occurs without a deliberate intention, as if by random occurrence or luck.
Two-sample Chi-square
A statistical test used to compare the difference between two categorical variables from two different populations.
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