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) "| What is the difference between normal distributions and t-distributions? A Normal distributions are used for population data, while t-distributions are used for sample data. B Oo Normal distributions are solely used for discrete data, while t-distributions are used for continuous data. C Normal distributions are identified by mean and standard deviation, while t-distributions are identified by degrees of freedom. D Normal distributions are characterized by degrees of freedom, while t-distributions are characterized by mean and standard deviation