Mean - the sum of a variable's values divided by the total number of values There are three measures of central tendency: They describe the "average" member of the population of interest. Measures of central tendency are the most basic and, often, the most informative description of a population's characteristics. Glossary terms related to graphical and pictorial methods: Visit the following websites for more information: Using a GIS program, a researcher can create a map to represent data relationships visuallyĭisplay networks of relationships among variables, enabling researchers to identify the nature of relationships that would otherwise be too complex to conceptualize
Each person in the data would receive one data point on the scatter plot that corresponds to his or her height and weightĪ GIS is a computer system capable of capturing, storing, analyzing, and displaying geographically referenced information that is, data identified according to location The height of the bar corresponds to the frequency with which that value occursĭisplay the relationship between two quantitative or numeric variables by plotting one variable against the value of another variableįor example, one axis of a scatter plot could represent height and the other could represent weight. Visually represent the frequencies with which values of variables occurĮach value of a variable is displayed along the bottom of a histogram, and a bar is drawn for each value Graphical and pictorial methods provide a visual representation of the data. There are several graphical and pictorial methods that enhance researchers' understanding of individual variables and the relationships between variables.
0 kommentar(er)
