How to convey set inclusion and exclusion?

1. What is inclusion and exclusion in sets?
2. How do you define inclusion and exclusion criteria?
3. Which of the following is the correct formula for the principle of inclusion exclusion?

What is inclusion and exclusion in sets?

Principle of Inclusion and Exclusion is an approach which derives the method of finding the number of elements in the union of two finite sets. This is used for solving combinations and probability problems when it is necessary to find a counting method, which makes sure that an object is not counted twice.

How do you define inclusion and exclusion criteria?

Inclusion criteria is everything a study must have to be included. Exclusion criteria are the factors that would make a study ineligible to be included. Criteria that should be considered include: Type of studies: It is important to select articles with an appropriate study design for the research question.

Which of the following is the correct formula for the principle of inclusion exclusion?

Explanation: The formula for computing the union of two sets according to inclusion-exclusion principle is |A U B|=|A|+|B|-|A,B| where |A,B| represents the intersection of the sets A and B.