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Chi-square tests of independence are always lower-tailed because a perfect fit between and
makes
equal to zero.
Proprietary Databases
Exclusive databases owned by an organization that contain information not available to the public or competitors, often used for competitive advantage.
Geographic Information
Information that is related to a specific location on the Earth's surface, often used in mapping and spatial analysis.
Demographic Information
Data related to the statistical characteristics of populations, such as age, race, gender, income, etc., often used in marketing and planning.
Secondary Data
Information that has already been collected and analyzed by other sources, such as reports, studies, and databases, used for research or decision-making purposes.
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