STAT 100 Lecture Notes - Lecture 3: Frequency Distribution, Histogram

• School: University of Maryland
• Department: Statistics and Probability
• Course: STAT 100
• Professor: Cremins

Document Summary

One way to examine a single variable is to graphically display its distribution. The distribution of a variable tells what values a variable takes and how often it takes these values. Distributions can be displayed using a table, graph, or a function. If displaying using a graph, the proper choice of a graph depends on the nature of the variable. Relative frequency the relative amount (percentage) to the total. Displays of distribution: distribution of ______ (name of category) < this is your title. Raw qualitative data comes as a list of values each value is one out of a set of categories. This allows researchers to categorize or classify individuals into groups. The frequency, or the count, of the observations that belong to each category. The relative frequency, or the proportions (or percents), of the observations out of the total that belong to each category.