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Business Modeling-  Paired &  Unpaired t-test

Statistics- Paired t-test

These types of t-tests are used to compare groups that are related (dependent) in some way.

Statistics- Unpaired t-test

These types of t-tests are used to compare groups that are independent from one another or not related.

Database Management Systems- Joins Continued

SQL Inner Join

Join is used to combine the rows from two tables. An inner join tries to match up the two tables based on the criteria you specify in the SQL query, and only returns the rows that match.

Data in Action

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