3 pts

In Tufte:

1-"Redundancy, upon occasion, has its uses: igving a context and order to complexity, facilitating comparisons over various parts of the data, perhaps creating an aesthetic balance.

2-"Vigorous pruning improves the graphic immensely, while still retaining all the data of the original. [In some cases] It is remarkable that erasing alone can work such a transformation..."

3-Regarding line graphs:"The space opened up by erasing can be effectively used." This is regarding labeling the initial data for the graph period, to serve an extra a reference.