SOC222H5 Study Guide - Midterm Guide: Standard Deviation, Interquartile Range, Null Hypothesis
Document Summary
Frequency the number of times something occurs in a sample. Proportion the frequency obtained by dividing the frequency of each category by the total cases. Percentage the proportion multiplied by 100 to get a percent. Ratio the number of cases in one category divided by the number of cases in another category. Rate the actual number of occurrences of something divided by the number of possible occurrences of the something per unit of time. Percentage change the amount that a variable has increased or decreased over a specific period of time. Measure of central tendency the measure of the most typical value. Mode most common number in a set. Median middle number in an ordered set. Mean average of a set of numbers. Kurtosis refers to the flatness or peakedness of a distribution (flatter = negative/peaked = positive) Dispersion how data are distributed relative to the middle.
