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Displaying Quantitative Data

Displaying Quantitative Data. Day 3. Open your book to p. 54. Follow the directions for graphing a histogram in the section TI Tips. Comparing Distributions. Look at the shape, center, spread. Unusual features? Interpret in CONTEXT!. Re-expressing Skewed Data.

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Displaying Quantitative Data

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  1. Displaying Quantitative Data Day 3

  2. Open your book to p. 54 • Follow the directions for graphing a histogram in the section TI Tips

  3. Comparing Distributions • Look at the shape, center, spread. • Unusual features? • Interpret in CONTEXT!

  4. Re-expressing Skewed Data • Skewed distributions are hard to summarize. • Example graph on page 58. • Data that is skewed to the right • Re-express using: • Logarithms • Square roots • Data that is skewed to the left • Re-express using: • Squaring data values

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