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3 years, 1 month ago
In Venn Diagrams, let us say there is a group of people reading newspapers. Then what is the difference between number of people reading 2 newspapers vs exactly two newspapers
3 years, 1 month ago
reading 2 newspapers includes exactly 1 (only) and exactly 2 (both - intersection part) newspapers also but exactly 2 includes only (both - intersection part). difference between them is equal to sum of the exactly one newspapers.