110_lec07_Distributions

110_lec07_Distributions - Presenting Data For data to be...

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Presenting Data For data to be useful, it must be summarized. Tables are hard to read. Graphs and Charts are much easier to read.
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Good Data Practices Clearly labeled Title – general subject Label all variables (on x-axis and y-axis) Units should be specified Identify Source of Data Date Data Example: Let’s draw a bar chart showing average incomes by Columbia districts in 2003.
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Top Five All-Time Olympic Medal Standings (1896-2000) Country Gold Silver Bronze Total Total Percent USA 871 659 586 2116 44% USSR (52-88) 395 319 296 1010 21% Great Britain 180 233 225 638 13% France 188 193 217 598 12% Italy 179 143 157 479 10% Davidson Olympic Webpage
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Pie Charts Top Five All-Time Olympic Medal Standings (1896-2000) 44% 21% 13% 12% 10% USA USSR Great Britain France Italy
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Pie Chart A pie chart shows how a whole is divided into parts. Circle represents the whole. Slices represent percentage of the whole that each value of the variable assumes. Variable=(Country Receiving Medal) Values=(USA, USSR, Great Britain, France, Italy)
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Bar Graph Top Five All-Time Olympic Medal Standings (1896-2000) 0 500 1000 1500 2000 2500 USA USSR GB FRANCE ITALY Number of Medals
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Bar Graph Top Five Total Olympic Medals (1896-2000) 0% 5% 10% 15% 20% 25% 30% 35% 40% 45% 50% USA USSR Great Britain France Italy Percent of Medals
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110_lec07_Distributions - Presenting Data For data to be...

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