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Describing the Data

September 6, 2011. Describing the Data. Individuals are those people, places, or things which are being described by the set of data. Individuals. A variable is a characteristic of an individual. It can take different values for different individuals. There are two types of variables….

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Describing the Data

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  1. September 6, 2011 Describingthe Data

  2. Individuals are those people, places, or things which are being described by the set of data. Individuals

  3. A variable is a characteristic of an individual. It can take different values for different individuals. There are two types of variables… Variables

  4. Quantitative Variable: Always numerical. This is a variable which can be measured, in feet, pounds, points, etc. Math can be calculated using values of quantitative variables. Variables

  5. Qualitative Variable: Usually not numerical. This is a label for the variable (such as job titles, favorite color, etc). Also known as categorical variable. • When numerical, these may be items such as phone numbers, jersey numbers, etc. (anything that math cannot be done on). Variables

  6. Of individuals. Of quantitative variables. Of non-numerical qualitative variables. Of numerical qualitative variables. Give some Examples…

  7. Write 3 examples of individuals in the high school setting. List at least two each quantitative, non-numerical qualitative, and numerical qualitative variables for each type of individual. Label each type. Work as a group—do NOT just divide up the work. Turn in one paper. Group Work

  8. Pages 7 - 8, #1 - 4. Page 20, #18 a, b. Whenever appropriate, make sure you show your work. This will be due on Wednesday, 9/20 (but don’t wait until then to start!)  Don’t forget, you do have something due tomorrow… Homework Assignment #2

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