Early speculation on the sources of cosmic rays included a 1934 proposal by Baade and Zwicky suggesting cosmic rays originated from supernovae. A 1948 proposal by Horace W. Babcock suggested that magnetic variable stars could be a source of cosmic rays. Subsequently in 1951, Y. Sekido et al.
Some graph types such as stem and leaf displays are best-suited for small to moderate amounts of data, whereas others such as histograms are best-suited for large amounts of data. Graph types such as box plots are good at depicting differences between distributions. Scatter plots are used to show the relationship between two variables. Please answer the questions:
As we move into the new topic, box and whisker plots, I continue to emphasize the importance of the diagram. Finding the quartiles is one task in itself that will provide useful information; diagraming the data will aid comparisons as the differences become very visible. Again, it is best to use various distinct examples of box and whisker plots and identify the quartiles with students before they do it on their own. Begin by identifying these parts in individual box and whisker plots alone (included in worksheet and ppt). Then, move on to comparing two diagrams, noting which has a higher or lower quartile. (included in worksheet and ppt).