Summary Week 3

Summary Week 3 - Anscombe makes the argument that graphical...

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Summary Lightman Lightman in his book “Size of the Cosmos” mentions Leavitt, a female scientist who came up with new theory on the illumination of binary stars. Leavitt argued that differences in illumination were not due to varying orbital changes but due to the star’s internal processes. Moreover Leavitt also discovered certain specifics regarding the distances of stars from earth and how they could be used in determining distances in space. Her control was not the typical illumination process, but rather certain unique stars that had relatively constant distances as a means of determining distance. This revolutionized ways of measuring distances in space leading to further scientific discoveries. Summary Anscombe
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Unformatted text preview: Anscombe makes the argument that graphical displays are essential in order to understand statistical results. Although calculations maybe more exact, graphs are rough and give a more basic understanding of trends and evaluations. Moreover, Anscombe also argues that graphs lead to better understanding of regression analysis and clearly identify outlying factors as well as possible inferences from trends. In addition Anscombe argues that axis analysis allows many mathematical insights into the nature of data. Slope as well as coefficient ratio displayed in visual form leads to more understanding as well as interesting observations when compared to other graphs indicating various correlations....
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