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# Section 2.4-2.5

### Statistical Graphics_Probability & Statistics - Math 1530

TermDefinition
Frequency Polygon Uses line segments connected to points directly above class midpoint values.
Relative Frequency Polygon Uses relative frequencies (proportions or percentages) for the vertical scale.
Ogive A line graph that depicts cumulative frequencies.
Dot Plot Consists of a graph in which each data value is plotted as a point (or dot) along a scale of values. Dots representing equal values are stacked.
Stemplot (or Stem-and-Leaf Plot) Represents quantitative data by separation each value into two parts: the stem (such as the leftmost digit) and the leaf (such as the rightmost digit)
Bar Graph Uses bars of equal width to show frequencies of categories of qualitative data. Vertical scale represents frequencies or relative frequencies. Horizontal scale identifies the different categories of qualitative data.
Multiple Bar Graph Has two or more sets of bars, and is used to compare two or more data sets.
Pareto Chart A bar graph for qualitative data, with the bars arranged in descending order according to frequencies.
Pie Chart A graph depicting qualitative data as slices of a circle, size of a slice is proportional to frequency count.
Scatter Plot (or Scatter Diagram) A plot of paired (x,y) data with a horizontal x-axis and a vertical y-axis. Used to determine whether there is a relationship between the two variables.
Time-Series Graph Data that have been collected at different points in time: time-series data.
Created by: hfanch24