Using dummy variables is an efficient way of determining counts of categorical variables.
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Q1: A histogram is used to display categorical
Q3: A distribution of a numerical variable with
Q4: Categorical variables can be classified as either
Q5: A data set is typically a rectangular
Q6: Age,height,and weight are examples of numerical data.
Q7: Cross-sectional data are data on a population
Q8: Phone numbers,Social Security numbers,and zip codes are
Q9: Both ordinal and nominal variables are categorical.
Q10: The number of car insurance policy holders
Q11: A population includes all elements or objects
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