chapter 2

• a feature of a graph that is an average value that indicates where the center of the graph is located

  center
• a feature of a graph that is a measure of the amount that the data values vary

  variation
• a feature of a graph that indicates the shape/spread of the data over a range of values

  distribution
• sample values that lie very far away from the vast majority of the other values

  outliers
• a feature of a graph that is changing characteristics of data over time

  time
• amount of times a category occurs in a data set

  frequency
• frequency in category/sum of all frequencies=

  relative frequency
• a type of bar graph where the bars are arranged in descending order

  pareto chart
• must use relative frequencies for a pie chart