Problem:
The following table represents gas well completions during 1986 in North and South America.
D D'
Dry Not Dry
N North America 14,131 31,575 45,706
N′ South America 404 2,563 2,967
14,535 34,138 48,673
a. Draw a Venn diagram that summarizes the information in the table.
b. Identify the region of the Venn diagram that represents (N and D).
c. Identify the region of the Venn diagram that represents (N' and D').
d. Identify the region of the Venn diagram that represents (N or D).
e. Identify the region of the Venn diagram that represents (N' or D').
NOTE: You can use the drawing commands in Microsoft Excel to draw the Venn diagram. You can also make the diagrams rectangles instead of circles if that is easier.
Please explain how to draw a Venn diagram.