Analysis of Seed Lengths and Widths
Lab 3.2
Summary Statistics
- Seed types are Kama, Rosa, and Canadian
- 210 observations (70 per seed type)
- Mean seed length of 5.629
- Mean seed width of 3.259
Scatter plot
Analysis
The lengths and widths of seeds appear to have a relatively positive linear relationship. As the observations increase in length or width, the bubble also gets larger. This is easily explained by the increase in area that comes with an increase in x or y. Canadian seeds, represented by the blue dots, are both the smallest in length and width. They also seem to be the most tightly grouped of the three seeds, showing the least amount of variation in size. Kama seeds are the second largest, indicated by the red dots representing the middle of the scatterplot. The Rosa seeds are the largest in length and width, which is shown by both their upper right position on the chart and the large size of the green dots.
Revisions
Luke recommended that I use a subtitle on the title page to explain what the presentation is over, rather than the title simply being “Lab 3.1”. He also gave me the idea to make the points more transparent.
Yamil suggested that I should include more summary data before the graph to help further the audience’s understanding of the graph, along with provide some basic statistics about the data.