Examlex
Another name for return on investment is the:
Association
In statistics, it refers to any relationship or correlation between two or more variables.
Null Hypothesis
A default statement in statistics that there is no significant effect or no difference, usually set as the assertion to be tested.
Chi-Square Test
A statistical test used to determine if a significant difference exists between the expected frequencies and the observed frequencies in one or more categories.
Independence
The state of being free from outside control or influence; in statistics, it refers to the scenario where the occurrence of one event does not affect the probability of another.
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