A variable is an empirical measurement of a characteristic.
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Q19: The cumulative percentage records the percentage of
Q20: A percentile reports the percentage of cases
Q21: A distribution with a skinnier left-hand tail
Q22: A Likert-type scale is an additive index
Q23: A researcher wants to measure individual support
Q25: Mean, median, and mode are all measures
Q26: The percentage of voters who report voting
Q27: Nominal-level variables are the most precise.
Q28: The ranking in ordinal-level variables is reflected
Q29: A histogram shows the percentage or frequency
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