Sociology 2205A/B Chapter Notes - Chapter 2: Mortality Rate, Frequency Distribution, Cumulative Frequency Analysis
12 Feb 2018
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Where: f = frequency, or the number of cases in any category n = the number of cases in all categories: percentages and proportions are easier to read and comprehend than frequencies. Ratios and rates: ratios are especially useful for comparing categories of a variable in terms of relative frequency. Crude death rate = # of deaths / total population x100: rates are often multiplied by 100,000 when the number of the actual occurrences of some phenomenon is extremely small relative to the size of the population. Frequency distributions introduction: frequency distribution is a table that summarizes the distribution of a variable by reporting the number of cases contained in each category of the variable, must be mutually exclusive and exhaustive. Frequency distributions for variables measured at the interval-ratio level. Intervals: the categories used in frequency distributions for interval-ratio-level variables: to maintain mutual exclusivity between categories, do not overlap the intervals.
