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Unformatted text preview: *Be sure to use the appropriate measure! AEM 2100, Spring 2011 WEEK IN REVIEW Feb 7-10 SECTION 2 Descriptive Statistics: Concerned with the presentation, summarization, and description of data Classification of Data: Qualitative Quantitative Tabular Descriptio n Methods Frequency Distribution Relative Frequency Distribution Contingency Table Frequency Distribution Relative Frequency Distribution Cumulative Frequency Distribution Cumulative Relative Frequency Distribution Graphical Descriptio n Methods Bar Graph Pie Chart Side-by-Side Bar Chart Stem and Leaf Plot Histogram Ogive Scatter Diagram Describing Two Qualitative or Quantitative Variables in Tabular or Graphical Form: • Contingency Tables (Tabular, Qualitative)- Used for describing two variables. Typically, the independent variable is displayed in the rows.- Overall percentages- Each cell entry is divided by the overall total (the sum of all the individual entries should be 1)- Row percentages - What is the percentage in each column, given that you are looking at a specific row? (rows sum to 1)- Row percentages - What is the percentage in each column, given that you are looking at a specific row?...
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This note was uploaded on 03/27/2011 for the course AEM 2100 taught by Professor Vanes,c. during the Spring '08 term at Cornell University (Engineering School).
- Spring '08