*This preview shows
page 1. Sign up
to
view the full content.*

**Unformatted text preview: **Parameter: Numerical summary of the population. Statistic: Numerical summary of a sample taken from the population. Variable: Any characteristic that is recorded for subjects in a study. Observations: The data values that we observe for a variable. Categorical: A variable is called categorical if each observation belongs to one of a set of categories. Quantitative: A variable is called quantitative if observations on it take numerical values that represent different magnitudes of the variable. Quantitative Variables A quantitative variable is discrete if its possible values form a set of separate numbers, such as 0, 1, 2, 3 A quantitative variable is continuous if its possible values form an interval. Proportion: The frequency of observations in a category divided by the total number of observations. Percentage: The proportion multiplied by 100. Proportions and percentages are also called Relative Frequencies....

View
Full
Document