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Statistical Graphs

Statistical Graphs. By Katelyn Donovan. Presidents’ Age. Age at their death http://www.infoplease.com/ipa/A0194030.html Statistical Graphs are used to organize and analyze data. Stem-and-Leaf Plot. Maintain the availability of the raw data. Frequency Table.

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Statistical Graphs

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  1. Statistical Graphs By Katelyn Donovan

  2. Presidents’ Age • Age at their death • http://www.infoplease.com/ipa/A0194030.html • Statistical Graphs are used to organize and analyze data

  3. Stem-and-Leaf Plot • Maintain the availability of the raw data

  4. Frequency Table • Does not maintain the availability of the raw data • Summarizes the data

  5. Bar Graphs • The horizontal scales are discrete. Categories like Coke, Pepsi, Mountain Dew • The bars do not touch and are the SAME WIDTH. • Use Data from Frequency Table

  6. Histogram • Like a Bar Graph but bars touch and are the SAME width. • Categories are numbers • Use Data from Frequency Table • The data for the President’s Ages at Death will be expressed in a Histogram rather than a Bar graph President’s Ages at Death Number of Presidents 40-49 50-59 60-69 70-79 80-89 90-99

  7. Line Graph • Use Data from Frequency Table

  8. Use Data from Frequency Table Circle (Pie) Chart

  9. The End

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