It could be said that some of their ancestors were the first Europeans to discover North America in 1000 AD (see Leif Ericson). Other Normans came to Canada from countries that they had immigrated to after the Edit de Nantes had been revoked in 1685.
Can a circle graph be used to display data from a histogram? What type of data can line graphs display? Line graphs are used to display data to show how one variable (the  Responding variable) changes in response to another variable (the  Manipulated variable). Making the world better, one answer at a time.
Graphs in Economics. Graphs are often used in economics to display concepts in a visual form. Economics at the basic level makes heavy use of graphs, so it's important to understand how to read them. In economics graphs are often used to show the relationship between two concepts, such as, price and quantity. Most graphs used in economics only work with the upper right corner or the northeast quadrant. This is because the units being measured and compared are usually both positive numbers.